you discover that an atom of an unknown element had 54 protons. identify the element and explain how you know the identity is correct. explain whether the unknown element is more or less reactive than an atom of an element that has 30 protons. identify an element that would have very similar chemical properties (as element 54) to the unknown element and explain why its chemical properties would be similar.

Answers

Answer 1

Answer: Xenon

Explanation:

if you look on the periodic table of elements, youll notice that the only element with 54 protons is Xenon. Hope this helps!!

Answer 2

Protons are the positive charged subatomic particle that lies with the neutron in the nucleus of the atom.

The unknown element with 54 protons will be Xenon.

It is because Xenon is the only element in the periodic table having 54 protons. Element has the same number of protons and electrons therefore Xenon is the element that will have 54 protons.

It belongs to the noble gas group because the outer shell is a filled valence shell that is stable and less reactive compared to other elements.

Therefore it will be less reactive compared to the element having 30 protons.

The elements having similar properties as Xenon will be helium, neon, argon etc because they have the same group in the periodic table.

To learn more about Xenon follow the link:

https://brainly.com/question/20188831


Related Questions

A family has a furnace that uses natural gas to heat their home. They are moving to an area that offers the option of using energy from a solar power plant to heat their home. Which disadvantage will the family most likely face by making this switch?

a less reliable production of heat

higher costs for the monthly heating bill

an increase in waste production

smaller quantities of heat

Answers

A less reliable production of heat. If they choose to go solar, their house would have to have plenty on sunlight through the day, and they should not live somewhere that gets snow or is cloudy the whole day because it would block the amount of sun the house could get. They would have to plan ahead to figure out if they could use solar or not based on their home and property.

Answer:

A. a less reliable production of heat

Explanation:

good luck!

Janet is studying a population of genetically-identical individuals. Janet can conclude that these organisms.
A. do not reproduce.
B. reproduce sexually.
C. reproduce asexually.
D. are multi-cellular.

Answers

c.reproduce asexually
Reproduce asexually.

Why is growth and reproduction of a cell cycle?

Answers

Answer:

In addition, a larger cell is less efficient in moving nutrients and waste materials across the cell membrane. - Asexual reproduction is the production of genetically identical offspring from a single parent. During the cell cycle, a cell grows, prepares for division, and divides to form two daughter cells.

Explanation:

if a great number of radio waves are reflected back from a particular area, what does that tell the scientists about the weather in that area

Answers

Answer:D

Explanation:

Answer:

D

Explanation:

Which stimulus is most likely to cause a shivering response in a human? O A. A squirrel perches on a branch. O B. The temperature drops at night. C. A tree releases pollen into the air. O D. The Sun rises overhead at noon.​

Answers

Answer:

B- the temperature drops at night

Answer:

The temperature drops at night

hi;) I would love it if someone could help thanks (science question btw)

Answers

Answer:

It's the split( D )

Its the last one. D

PLEASE HELP. ITS FOR MY SIS. PLEASE NUMBER EACH ANSWER FOR NO CONFUSION.

1.An apple contains about 20 grams of carbohydrates. How much energy does it provide?

2.Compare and contrast macronutrients and micronutrients.

3.Explain why you need fiber in your diet even though you can’t digest it.

4.Why is water considered a nutrient?

Answers

Answer:

1. It provides not a lot of energy due to its lack of protein

2. Macronutrients are big picture nutrition categories, such as carbohydrates, fats, and proteins. Micronutrients are smaller nutritional categories, such as individual vitamins and minerals like calcium, zinc, and vitamin B-6.

3. Fibers keep your digestive system clean and healthy, easing bowel movements, and flushing cholesterol and harmful carcinogens out of the body.

4. It is considered a nutrient because it plays a vital role in keeping alive

Explanation:

I just answered the questions honestly

I am sorry if it is not what your looking for

I HOPE YOUR SISTER GETS THE ANSWER

how are plant cells and human cells the same?
a. they can produce their own oxygen.
b. they make their own food from sunlight.
c. they can receive nutrients through the cell wall.
d. they use mitochondria to release energy from sugars.

Answers

A. They can produce their own oxygen

Plant cells and human cells are similar in the sense that they both use mitochondria to release energy from sugars.

Plant cells and human cells are two distinct kind of cells. Plant cells are autotrophic meaning that they can synthesize their own food using energy from sunlight but human cells are heterotrophic meaning that they depend on other organisms for food.

Despite this huge difference between plant and human cells, they still possess some similarities. One major similarity between plant and animal cells is that they both possess MITOCHONDRIA and use it to undergo cellular respiration.

Cellular respiration is a process that breaks down organic substances like sugars to synthesize ENERGY (ATP). This process occurs in the MITOCHONDRIA of both plant and animal cells.

Therefore, the fact that both plant and human cells use mitochondria to obtain energy is a similarity between them.

Learn more: https://brainly.com/question/13553521

What category do you think humans fall into? Explain your reasoning.
reproduction wise.

Answers

Answer:

Mammals

Explanation:

Humans are classified as mammals because humans have the same distinctive features (listed above) found in all members of this large group. Humans are also classified within: the subgroup of mammals called primates; and the subgroup of primates called apes and in particular the 'Great Apes'

Answer:

Mammals

Explanation:

Examples of Mammals

aardvarks.

bats.

elephants.

hamsters.

humans.

rabbits.

rhinoceroses.

whales.

What are several benefits of tidal energy?

Answers

Answer:

maintains efficiency, a predictable energy source, easy and flexible maintenance and environment friendly

Identify three functions of protein in the diet.

Answers

1. provides structure 2. growth and maintenance 3. acts as a messenger and if you wanna do one more 4. causes biochemical reactions
The person above me did, good luck. Protein diet function

Help me with these 2 questions, thanks!

Answers

Answer:

A and C

Explanation:

You are on an expedition with a friend. As scientists, you are both learning about glaciers and their characteristics. You are both surprised to see in person that glaciers can look blue in color. Why is this the case? How will you explain your findings to your colleagues?

Answers

Answer:

Because the red (long wavelengths) part of white light is absorbed by ice and the blue (short wavelengths) light is transmitted and scattered. The longer the path light travels in ice, the more blue it appears.

If you travel from point A to point B in the diagram above, what conclusion can you make about the depth, temperature, and marine life of the ocean?

A: As the depth of the ocean increases, the temperature decreases and the marine life decreases.
B: As the depth of the ocean decreases, the temperature increases and the marine life increases.
C: As the depth of the ocean increases, the temperature decreases and the marine life increases.
D: As the depth of the ocean decreases, the temperature increases and the marine life decreases.

Answers

Answer:

I think its A.... pls tell me if im wrong, I'll change it :)

Explanation:

It’s Aaaaaaaaaaaaaaaaaa

Please Help Me!!

Suppose you and some friends are going to the beach for the day. You want to bring a cold lunch with you to have later in the day.

1. Think about what happens to something cold at a hot place like the beach. What kind of container should you use to pack your lunch? Explain your reasoning.

Answers

Answer:

If you are brining a cold lunch to a hot beach you will come back to a warmer lunch than before. I think that if you were to use a container to help that from happinig you should use a cooler.

Is that what you are looking for? If not, tell me!

Answer:

The cold lunch would almost thaw like in the warm tempature. Thus then you think you need a better container. The container that would be cooler than your cold lunch. So if you come back it will be more cool than if you had a normal container.

you already know the answer so whatever i gues.

10. Plants make energy-storing during photosynthesis.
A. Glucose
B. Mitochondria
C. Oxygen

Answers

A. The correct answer is Glucose

True or False: Matter is changed into various forms but the total quantity remains unchanged. How do we animals depend on photosynthesis?

Answers

Answer:

We depend on them to convert carbon dioxide into oxygen. And also for food energy.

Explanation:

Answer:

Id say true, and plants due phyosynthesis and are the bottem of the ood chain so with out photosynthesis the food hain will collapse

Explanation:

Image by Mariana Ruiz Villarreal
Which phase of mitosis is shown in the diagram?
O anaphase
O metaphase
O telophase
O prophase

Answers

The phase of mitosis in the diagram is Anaphase.

The cell cycle can be divided into interphase and mitotic M phase.

The mitotic M phase refers to the process cell division of somatic cells.

This phase (M phase) can be divided into a series of sequential steps that include Prophase, Metaphase, Anaphase, Telophase and Cytokinesis.

In Anaphase, the chromosomes separate and travel to opposite poles of the cell.

In conclusion, the phase of mitosis in the diagram is Anaphase.

Learn more about mitosis here:

https://brainly.com/question/19058180

URGENT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

A

Explanation:

The correct answer is A

Give me one reason why someone would recycle emotionally.



*~*15 points*~*

Answers

Answer:

Recycling keeps trash out of the landfill. ...

Recycling reduces our need for new raw materials. ...

Recycling conserves energy. ...

Recycling creates jobs. ...

Recycling reduces pollution.

Explanation:

Please answer ASAP....BRainliest and 25 points

Answers

Answer: Yes


Step-by-step explanation: Yes









what are we answering? i’m not stealing points. get back to me with what i’m doing and i’ll help.

Why is it dangerous to drink water from unkown sources? Explain.

Answers

Because water already dirty so from unknown sources there’s a highly likely chance it could be sum in it
Water can Carry different diseases and could have algae in it which is not good for the human body

How do sprouting plants exhibit positive gravitropism?

Answers

Answer:

Roots demonstrate positive gravitropism because they grow in the direction of gravity. Plant shoots demonstrate negative gravitropism since they grow in the opposite direction of gravity. Gravity is sensed by specialized cells called statocytes, which have statoliths that sink inside the cell.

Plants have a cell called c/v12

which statement about cells and sugar is true?
a. both animal cells and plant cells use sugar.
b. animal cells use sugar, but plant cells do not.
c. animal cells do not use sugar, but plant cells do.
d. neither animal cells nor plant cells use sugar.

Answers

the answer is a i think

can you help me number 7 and 8 plsssss

Answers

i think you got both right yk?
C and A I think sorry if I’m wrong

Water is a polar molecule. On one side there is a positive electrical charge. On the other side there is a negative charge. Water is the only substance on Earth that is stable in all three states. Earth is the only planet in the solar system that has water in all three states.

How has water allowed life to become so diverse and complex on Earth? Cite evidence from the text that best supports this idea.

Answers

Answer:On Earth, water is the solvent critical to life without which organisms cannot survive. Its presence is so critical, because water provides an environment allowing some chemical bonds to be stable and to maintain macromolecular structure, while at the same time assisting in the dissociation of other chemical bonds

Explanation:

Water is the solvent.
And land is the solute

Why did the endangered species get put into place ?

Answers

Answer:

“An endangered species is a type of organism that is threatened by extinction. Species become endangered for two main reasons: loss of habitat and loss of genetic variation. A loss of habitat can happen naturally. ... Development can eliminate habitat and native species directly.”

Explanation:

Because there is less of that one specific species.
The reasons could be hunting, pollution, etc.

.......help (ToT) thanks,

Answers

Answer:

testing the hypo

Explanation:

Answer:

B

Explanation:

cuase i got it right on a test

Four groups of students plan scientific investigations to answer four questions for the science fair.



Which question would most likely be answered with an experimental investigation?

1
2
3
4

Answers

Answer:

I think it would be 4, but I could be wrong!

Explanation:

I think it might be 3 but I could be wrong

What is one positive thing that can happen after a hurricane?

Answers

Answer:

Hurricanes also have positive effects such as: Bacteria and red tide breakup. Help to balance global heat. Replenishment of barrier islands.

Explanation:

Hope this helps! Have a good day or night! :)

Answer:

Hurricanes also have positive effects such as: Bacteria and red tide breakup. Help the balance of global heat. Replenishment of the barrier islands.

Explanation: hope this helps !!!!!!!!!!!!!!!!!

Other Questions
he;ppppppppppppppppppppppppppppppppppppppppppppppppppppp Plz help with my homework.. I'm confused.. In your own words, describe how redshift gives evidence that the stars are moving farther andfaster away from Earth. Include the following words in your explanation light, stars, redshiftwavelength, change, distant. What advantage did the slaves labeled as specialists possibly have? HELP PLEASE AND THANK YOU According to the Screen Actors Guild figures for 1997, whichis true about representation of people of color on TV and inthe movies?A. Representation of all groups was the same as it was100 years prior.O B. Representation of all groups was lower than it was75 years prior.O C. Progress had finally been made in the balancebetween populations and representation.D. Equality had been achieved across populations, andequal representation was also achieved. These are sites that allow you to upload and download media content such as images, audio, and video How was the Supreme Court's decision in Trop v. Dulles related to the Eighth Amendment?A.The Supreme Court found that Dulles had not conducted unreasonable search and seizure.B.The Supreme Court ruled that Dulles had imposed excessive fines.C.The Supreme Court found that Trop had been subjected to excessive bail.D.The Supreme Court ruled that removing Trop's citizenship was cruel and unusual punishment. WILL MARK BRAINLIST FOR MY EXAM PromptTodos los materiales de la oficina estn invitados a una reunin. Sin m, ni mi familia- dice el lpiz, nadie puede escribir. Pero yo- dice el borrador, puedo hacer desaparecer todo lo que lpiz escribe. Es hoja de papel, la que sonre y dice: lo siento, lpiz, pero sin m, t no eres nada! Y t, de que hablas? dice la tijera- si yo te corto a t, no eres nada, o s? Pero sin m dice el computador-, nadie puede encontrar informacin. Yo soy el orculo, el ms inteligente de todos. Todos ven a alguien que llega silenciosamente.Quien invit a alguien ms?Yo no, yo no!- dicen todos.A ellos les parece imposible que alguien ms est all. En medio de esta pelea, todos dan un brinco cuando la secretaria se sienta a trabajar. Ella los mira y con una voz muy dulce, les dice: Todos ustedes son muy importantes que sera de m sin todos ustedes! Preguntas de comprensin: (Please number your answers in the space provided below. Your answers must be full sentences in Spanish) Quines estn en una reunin?Quin es el primero en hablar?Qu dice la tijera?Qu dice el computador?Quin llega al final de la historia? What is the value of the expression: (-3) (- 1) (-2)= __________A. 8 B. 17 C. 17 D. 8 what is the rate of change of y to x for 25x-5y=50 what conclusions can you make about the culture. Which statement about the climate of the eastern United States is true? Question 4 options: New England receives little rain in the spring. The Midwest generally has mild winters. The Southeast has the most dramatic seasonal changes. The Midwest has hot and humid summers. Read this excerpt from Through the Looking-Glass by Lewis Carroll.That's right, said the Queen, patting her on the head, which Alice didn't like at all, though, when you say garden,I'VE seen gardens, compared with which this would be a wilderness.Alice didn't dare to argue the point, but went on: and I thought I'd try and find my way to the top of that hillWhen you say hill, the Queen interrupted, I could show you hills, in comparison with which you'd call that a valley.Why does the Red Queen use opposites to describe the garden and the hill?to remind Alice that she is the Red Queen and Alice is just a commoner who must mind her mannersto describe to Alice just how horrible and small all other gardens and hills really areto make the point that her garden and hill are better and bigger than any othersto convince Alice to stay with her in her garden and on top of her hill in the looking-glass land Catherine has $54. She plans to spend more than $20 of the money for a painting canvas. The rest will go towards paints. Each tube of paint costs $8.50. Assume that x represents the number of tubes of paint Catherine can buy. This is the inequality I need to figure out pls help "Wildly by wind" is an example of which kind of sound device?dissonanceend-rhymeonomatopoeiaalliteration She likes a sweets mangoesThe above sentence can be correctly framed as?A) She likes a sweet mangoB) She likes a sweets mangoC) Sweet mangoes she likesD) She likes sweets mangoes Which of the following is an example of osmosis? How did Napoleon control many European nations by 1812? I will give brailiest to the first person who can get this question correctWhat mushroom is it?A) parasol mushroomsB) Shaggy parasolC) Browned mushroomsD) Toadstool rusty brown