What is Zeff of phosphorus

Answer:

(1) In the modern day periodic table the atomic size is increasing when we  move down the group and it decreases when we move along the period from left to right. that's why Within a family such as the alkaline earth metals, the ionic radius increases as the atomic number increases. Alkaline earth metals have loosely held electrons which results in its increased size.

(2) The radius of the bromine atom is smaller than the radius of the bromide ion, Br-1 this happens because bromine is a non metal, and it also has a high electronegativity among other group elements as halogen group has high electronegativity. when the bromine acquires one extra electron and forms [tex]Br^-[/tex] ion, the configuration of bromine earlier was [tex]1s^22s^22p^63s^23p^64s^23d104p^5[/tex]  but on addition of the electron the p shell will now have 6 electrons resulting in [tex]1s^22s^22p^63s^23p^64s^23d104p^6[/tex]the newly added electron repels the former neutral orientation and as a result of repulsion the size increases.

(3) The first ionization energy of Aluminum is lower than that of the first ionization energy of magnesium   because magnesium has fully filled [tex]3s^2[/tex] orbital whereas Aluminum has one electron in the 3p orbitals, fully filled 3s orbitals has strongly held by the nucleus in case of Mg whereas 3p orbitals is shielded from the nucleus therefore it becomes easy to take out 3p electron that 3s electron.  

Answer:

a current flows through the loop of wire.

Explanation: my answers were worded diffrently

A loop of wire turns between two permanent magnets in a generator and the effect of this motion is conversion of Mechanical energy transforms into electrical energy.

Generator is a device which is used to convert mechanical energy to electrical energy.

In generator between the two poles of magnet a loop of wire rotate by the mechanical force which produces magnetic field which in turn convert into the electric field.

Hence, option (c) is correct.

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Answer:

−0.60205999

Explanation:

Answer:

160N

Explanation:

The force required to accelerate the two cars can be calculated thus:

F = m × a

Where;

F = force (Newton)

m = mass (kg)

a = acceleration (m/s²)

However, according to the question, a 50kg car is pulling a 30kg car, which means that the mass of the two cars is 50kg + 30kg = 80kg.

a = 2m/s²

F = ma

F = 80 × 2

F = 160N

Answer:

A

Explanation:

because the atomic radius reduced by loosing one energy level leading to a positive ion in the resulting ion

The study of chemicals and their bond is called chemistry.

The correct answer is A.

The metals have the property to lose electrons to become stable compounds.

In magnesium, the total number of electrons is 12. In a valance shell, they have 2 electrons.

when they lose or donate the two electrons to the other. The outer shell will be empty and the force of the nucleus remains in the inner shell.

The loss of electrons leads to a decrease in the size of an atom and form positive ions.

Hence, the correct answer is A that is a Positive ion with a smaller radius.

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Answer:

Mexico

Explanation:

The top five countries with the largest proven coal reserves

Mexico isn't on this list

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Answer:

We typically represent covalent bonds with a dash ( - ) between the atoms. This indicates a single bond. Ex: Cl - Cl

Single bond, double bond, triple bond.

Explanation:

We call it a single covalent bond because the atoms are sharing a single pair of electrons.

Answer: If you have this question: The bond order for a single covalent bond is ____.

Explanation:

Answer:

c. Waxing crescent

- I hope this helps have a great night

Answer:

Beta particles have a charge of minus 1.

Explanation:

Hope this helps!

Answer:

MARK AS BRAINLIEST ANSWER

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Explanation:

Beta particles have a mass which is half of one thousandth of the mass of a proton and carry either a single negative (electron) or positive (positron) charge. As they have a small mass and can be released with high energy, they can reach relativistic speeds (close to the speed of light)

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Answer:

it makes the compound more digestable

Explanation:

Answer:

it makes the compound more digestible

Explanation:

edg 2020 just got it right

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Answer:

1.b

2.c

3.a

4.a

5.d

6.false

Answer:

higher temperature, more kinetic energy, more space between particles, higher volume

This is true because increase in temperature kinetic energy increase so molecules move apart and increase volume

Explanation:

Answer:

C. Limiting internal combustion engines that power automobiles.

Explanation:

I majored in Chemistry

Explanation:

yes its hard if you don't pay attention.

Yes, the math is harder but chemistry is not it's really fun the math does get harder tho.

Answer:

dinitrogen pentasulfide

Explanation:

The correct name for the compound N₂S₅ is Dinitrogen pentasulfide and the correct option is option C.

Naming of compounds refers to the systematic process of assigning names to chemical compounds based on their composition and structure. It involves following certain rules and conventions to generate appropriate names that accurately represent the chemical formula and characteristics of the compound.

In inorganic chemistry, naming compounds often involves identifying the elements present and specifying their respective oxidation states or charges. Various naming conventions, such as the Stock system and the common system, are used depending on the type of compound and the specific elements involved.

Thus, the ideal selection is option C.

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Answer:

4

Explanation:

i think

Answer:

babe where are u???????!

Explanation:

babe plz text me im lowkey freaking out rn

Answer:

If there was only 10 hours in a day, including the night time it would be complexly new environment. Say you are up for 7 hours and sleep 3, in those 7 hours you would go to work for probably 4 hours, come home and do stuff for 3 then go to bed and do it all over again.

Answer:

Solid particles are close together not gas particles

Answer:

13.75

Explanation:

Density is equal to mass divided by volume. 110/8 = 13.75

The height of the object : 600 mm

Given

d object=360 mm(object distance)

d image=90 mm(image distance)

Required

h object

Solution

focal length = f :

[tex]\tt \dfrac{1}{f}=\dfrac{1}{d_o}+\dfrac{1}{d_i}\\\\\dfrac{1}{f}=\dfrac{1}{360}+\dfrac{1}{90}\rightarrow f=72~mm[/tex]

The magnification :

[tex]\tt M=\dfrac{d_i}{d_o}=\dfrac{90}{360}=0.25[/tex]

[tex]\tt M=\dfrac{h_i}{h_o}\\\\0.25=\dfrac{150}{h_o}\rightarrow h_o=600~mm[/tex]

Answer:

option A.car tyres be

Explanation:

Answer:

D, all of the above

Explanation:

Answer:

True

Explanation:

Answer:

True ;)

Explanation:

Answer:

Nice! If only....

Explanation:

Answer:

omg lol what even is this