Classify each of the following elements as
a metal, a nonmetal, or a metalloid:
boron, carbon, aluminum, and silicon.

Answers

Answer 1

The non-metals are boron and carbon. The metal is aluminum and the metalloid is silicon.

Explanation:

non-metal = boron, carbon

metal = aluminum

metalloid = silicon

Answer 2

Non-metal = boron, carbon

Metal = aluminum

Metalloid = silicon

What is metal?

A solid material which is lustrous, hard, shiny, malleable, and sonorous with good electrical and thermal conductivity.

Metal is an element which is typically hard, shiny, fusible, malleable, and ductile, with good electrical and thermal conductivity.

A nonmetal is an element that does not have the properties of a metal.

A metalloid is an element having intermediate properties of both metals and nonmetals.

Hence,

Non-metal = boron, carbon

Metal = aluminum

Metalloid = silicon

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Related Questions

Which pair of statements most accurately describes Earth's position relative to
the sun in late March and in late September?

Answers

Answer:

A

Explanation:

What is the value for AG at 100 K if AH = 27 kJ/mol and AS = 0.09 kJ/mol.K)?
O A. AG = 2700 kJ/mol
B. AG = -36 kJ/mol
C. AG = 0 kJ/mol
D. AG = 18 kJ/mol

Answers

The value for ΔG = 18 kJ/mol

Further explanation

Given

ΔH = 27 kJ/mol and ΔS = 0.09 kJ/mol.K

T = 100 K

Required

the value for ΔG

Solution

The spontaneous process of a reaction is based on 2 factors :

enthalpy change ΔH decreases and entropy change ΔS increases

ΔG=ΔH-T.ΔS

[tex]\tt \Delta G=27~kJ/mol-100\times 0.09~kJ/mol.K\\\\\Delta G=18~kJ/mol[/tex]

Which diagram above has 4 valence electrons?

Answers

Answer:

answer A has four valence electrons

Explanation:

The outer shell has 4 electrons, which are considered the valence electrons

will mark brainliest!​

Answers

Answer:

Dilute acid + carbonate used in making the salt of copper sulfate.

Explanation:

In this experiment an insoluble metal oxide is reacted with a dilute acid to form a soluble salt.Copper(II) oxide, a black solid, and colourless dilute sulfuric acid react to produce copper(II) sulfate,giving a characteristic blue colour to the solution.

Answer: B. dilute acid + carbonate

Explanation:

An insoluble metal oxide reacts with a diluted acid in order to make a salt.

Copper (II) oxide reacts and the diluted acid react to make Copper (II) sulfate.

Please help first to answer will get brainliest.
A model of the water cycle was made by adding a small amount of water into an aquarium, covering the aquarium with a piece of glass, and placing a lamp over the glass cover to add heat. What does the lamp represent when comparing this model to the real-life water cycle?


( A)Clouds


( B)Precipitation


( C)The ocean


( D)The sun

Answers

Answer:

D the sun

Explanation:

The sun adds heat to make the water evaporate.

Answer:

B)

Explanation:

The sun causes evaporation by heat, the lamps bulb will get hot and be a model of the sun. We know this because heat evaporates water.

What explanation can you give to explain the cartoon below. You need to use 5 of the terms listed below correctly in your explanation.

*Ionic Bond
*Ions
*Cation
*Anion
*Ionic Compound
*Monatomic Ion
*Electrostatic Forces
*Salts
*Metals
*Nonmetals
*Polyatomic Ion

Answers

Answer:

*Ions

*Cation

*Anion

*Monoatomic ion

*Electrostatic forces

What happens when molten material travels along the underside of the crust?

Answers

Answer:

Explanation:

The earth is comprised of denser materials such as iron and nickel and other siderophile elements in the core and silicate materials in the mantle. The temperature at the core of the earth is extremely high that generates a force, that allows the molten materials (magma) to rise up from the bottom of the mantle towards the crust, in the form of convection currents. This upward movement of magma forces the lithospheric plates to move.

Thus, magma rises from the bottom of the mantle towards the crust.

what is love made out of ?

Answers

Love is made of everything !!!!!!!

A student calculates the density of an unknown metal sample to be 8.25 g/cm3
Which set of data from the student's notebook correctly calculates the density of her unknown metal sample?
A
Mass = 165.2 g, Volume = 21.2 cm3
В.
Mass = 198.0 g. Volume = 24.0 cm3
С
Mass = 82.5 g. Volume = 11.0 cm3
D.
Mass = 202.5 g. Volume = 25.0 cm3

Answers

Answer:

the answer is b

Explanation:

mass=198 divided by volume 24 gives you 8.25

According to the text, which amino acid(s) contains a side chain..
a. in which molecules form covalent disulfide bridges with each other?
b. that is hydrophobic?
c. that forms hydrogen bonds?
d. that is basic?

Answers

Answer:

(b) that is hydrophobic

Explanation:

e.g, alanine

Cause, Alanine possess hydrophobic side chain and the most appropriate answer is (d) part......

Alanine is an aliphatic amino acid, because the side-chain connected to the α-carbon atom is a methyl group (-CH3), alanine is the simplest α-amino acid after glycine. The methyl side-chain of alanine is non-reactive and is therefore hardly ever directly involved in protein function..

Hope it will help you☺☺☺☺☺

Answer:

(b) that is hydrophobic

Explanation:

e.g, alanine

Cause, Alanine possess hydrophobic side chain and the most appropriate answer is (d) part......

Alanine is an aliphatic amino acid, because the side-chain connected to the a-carbon atom is a methyl group (-CH3), alanine is the simplest a-amino acid after glycine. The methyl side-chain of alanine is non-reactive and is therefore hardly ever directly involved in protein function...

Hope it helps....

What is the lon # for Beryllium (Be)?

Answers

Answer:

Number: 4

Charge: +2

Element: Beryllium

I hope this helps!! :)

Jonah realize even though she’s crushing the cans in the amount of material in the can is unchanged which of the following describes the reaction that is taking place

Answers

a change in form or appearance of matter

Explanation: CAUSE IT STILL IS THE  MATERIAL JUST IN A DIFFERENT SHAPE

Answer:

A change in form, or appearance of matter. Is your answer, can I have Brainliest? :) Have a great day! Hope it's right!

i need to know what occupied vs full means for chemistry

Answers

You can get the answer on quizlet or google

Which of the following are NOT possible electron configurations?

Answers

I think it’s 4 and 5 but I’m not sure

SOMEONE HELP ME PLEASE

Radiation
conduction
convection

Answers

Answer:

radiation

Explanation:

orange juice being made from fresh oranges
O a. physical property
Ob. physical change
O c. chemical property
O d. chemical change

Answers

I believe it is a physical change
It’s b. Physical change

The following compounds will
decompose on heating except
A Ag2CO3.
B. CaCO3.
C. K2CO3
D. PbCO.
E. ZnCO3​

Answers

AnsThe option C is correct

what is CdF^4 compound name

Answers

Answer:

well it might be 1.)Cadmium Fluoride CdF2 150.4078

2.)Cadmium(II) Perfluorate Cd(FO4) 2278.403

3.)Cadmium Ferrocyanide Cd2Fe(CN) 6436.7714

Explanation:

wich type of matter is always made up of only one kind of atom

Answers

Answer:

what is this for?

Explanation:

Answer:

Elements

Explanation:

"Elements are substances, forms of matter and gasses that are made up of only one type of atom."

Panico. (2012, September). The Atomic Model and Matter. Retrieved December 15, 2020, from https://odysseyk12.org/hs/teachers/panico/pdf/atoms/atoms.html

A gymnast performing a backflip into a cartwheel on a balance beam is am example of ________ force​

Answers

I’m gonna guess equal force sorry if I get it wrong <3

17.
Which of the following gases is used
in the demonstration of fountain
experiment?
A. CH
B. CO
C. HUS
D. NH3
E. SO2​

Answers

Answer:

ammonia gas and hydrogen chloride gas.

Which equation is correctly balanced?

Answers

Answer:

C

Explanation:

How do the physical and chemical properties of wood contribute to the function of the synthetic products made of wood?

Answers

Wood's tensile strength is reduced. Another risk factor for the strength of the wood is the loading time. The rigidity of wood is affected by temperature.

What is wood?

Wood is one of the most common and useful natural materials. It is the main tissue that supports and conducts nutrients in trees and other plants. Wood comes in a variety of colours & grain patterns and is produced by numerous botanical species, comprising both gymnosperms & angiosperms.

Its wood's tensile strength is reduced. Another risk factor for the strength of the wood is the loading time. The rigidity of wood is affected by temperature. Unfavourable weather and unexpected temperatures will have an impact on the wood's strength. Among its attributes are mechanical, chemical, and physical qualities.

Therefore, wood's tensile strength is reduced. Another risk factor for the strength of the wood is the loading time.

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Hello guys sorry for spamming again but I have to do this whole thing and the end of trimester for my school is today so I need to get good grades especially is science so here is the image please answer that. Thanks!!

Answers

Answer:

all you need if yo look up and say do plants grow without soil but yes they can grow without soil but they cannot grow without the necessities that soil provides.

Which is the molar mass of BF3?

Answers

Boron trifluoride/Molar mass
67.81 g/mol
Boron trifluoride 68.005

Which allotrope of phosphorus has less ignition temperature?

Answers

Answer:

kid poop i only did this for no reason

Explanation:

The number placed in front of a compound to balance a chemical reaction is called?

Answers

Answer:

coefficients

Explanation:

good luck

What very specific property of mineral calcite allows geologists to quickly identify it in a mixture of other colorless minerals

Answers

This is your perfect answer.

Other Identifying Characteristics
Calcite is easy to identify even without testing the reaction to HCl, by its hardness, luster and cleavage. Another special property is magnetism

Which change would best aid a farmer in making the transition from conventional farming techniques to more sustainable farming techniques?
irrigate crops using well water

reduce the ratio of essential elements in the fertilizer

plant only genetically modified crops

rotate the types of crops grown

Answers

Answer:

Rotate the types of drops grown

Explanation:

Using principles of atomic structure, explain why the atomic radius of Te is less than the ionic radius of Te2− . Photoelectron spectroscopy data for the 1s sublevel of Te and the 1s sublevel of O are represented below. In terms of Coulomb's law and atomic structure, explain why the peak for O is positioned so far to the right of the peak for Te .

Answers

Answer:

See explanation

Explanation:

Let us recall that a negative ion is formed by addition of electrons to an atom. When electrons are added to the atom, greater interelectronic repulsion increases the size of the Te^2− hence it is greater in size than Te atom. Therefore, the ionic radius of Te^2− is greater than the atomic radius of Te.

In the second question, oxygen is positioned so far to the right because it has a far smaller nuclear charge compared to Te. Hence in the PES spectrum, the 1s sublevel of oxygen lies far to the right of that of Te.

Using principles of atomic structure, the reason why the atomic radius of Te is less than the ionic radius of Te²− is because of the Electrostatic force of repulsion between the negatively charged electrons of Te²- thereby causing the ion to be bigger than the neutral atom.

We must remember that negative ions are formed as a result of the addition of electrons to an atom.

On this note, the electrostatic force of repulsion between the negatively charged electrons of Te²- ion becomes greater. Hence, the Te atomic radius is less than the ionic radius of the Te²- ion.

By considering the second scenario, the element oxygen is positioned so far on the right because it has a very much smaller nuclear charge compared to Te.

As a result, in the PES spectrum, the 1s sublevel of oxygen lies far to the right of the 1s sublevel of Te.

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