Chemistry High School

Is the number of electrons in different shells of an atom fixed or unlimited ? Explain by giving an example.​

Answers

Answer 1

Answer:

the number of electrons in a particular shell is given by the formula 2n^2 . However an electron when gets very exicited loose energy in the forms of radiation and comes in high energy level shell.

Related Questions

help me with this attachment please​

Answers

Answer:

See explanation

Explanation:

Let us recall that the basic rule in writing balanced chemical reaction equations is that the number of atoms of each element on the right hand side of the reaction equation is the same of the number of atoms of the same element on the left hand side of the reaction equation.

The reaction of red hot iron and steam is written as follows;

3Fe + 4H2O → Fe3O4 + 4H2.

The decomposition reaction of ammonium dichromate is written as;

(NH4)2Cr2O7 → N2 + Cr2O3 + 4H2O

Reaction of aluminium, sodium hydroxide and water is as follows,

2Al + 2NaOH + 2H2O ----> 2NaAlO2 + 3H2

Reaction of potassium bicarbonate with sulphuric acid;

2KHCO3 + H2SO4 -------> K2SO4 + 2H2O + 2CO2

Reaction of zinc and sodium hydroxide is as follows;

Zn + 2NaOH→Na2ZnO2 + H2

An oxygen atom has 8 protons. What number of neutrons would make an
oxygen atom most stable?

A. 10
B. 6
C. 12
D. 8

Answers

D. 8

Hope this helps! :)

______________

Answer:

D: 8 neutrons would make it most stable

Which two of the following changes of state involve solids?
Select two (2) answers


A. melting

B. boiling

C. freezing

D. evaporating

Answers

Answer:

Answer is A... Melting and freezing

name the gas which is formed when coal is heated in the absense of air​

Answers

Answer:

Coke

Explanation:

A solid fuel formed by heating coal in the absence of air is coke. Coke is black colored, tough porous substance. It is pure carbon.

State the name(s) of the sub-atomic particle(s) that have/has a positive charge. Answer with the name of the particle(s) only.

A. Neurons
B. Protons
C. Electrons

Answers

Protons hope this helps

Answer:

protons because they have the most positive charge

HELP! HELP! Calculate the value of ΔS⁰ at 298 K.

Answers

Answer:

ΔS⁰ = -181.1J/molK

Explanation:

ΔS⁰ of a reaction is defined as the sum of the entropies of the reactants times its reaction coefficient minus the sum of the entropies of the products times its reaction coefficient. For the reaction in the problem:

ΔS⁰ = 2*S{NaCl(s)} - (2*S{Na(s)}+S{Cl2(g)})

ΔS⁰ = 2*72.1J/molK - (2*51.1J/molK + 223.1J/molK)

ΔS⁰ = -181.1J/molK

Boyle's Law Problems
Charles' Law Problems ​

Answers

Answer:

here are the answers babe. Feel free to ask for more

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