Ch2 Questions (my answers)

Question 1

Where is all the mass of an atom located?

Answer 1

In the nucleus

Question 2

Define quantum number l in terms of n:

Answer 2

l = 0,1,2,3,4.. (n-1)

Question 3

Define m_ɭ in terms of ɭ:

Answer 3

−l, (−l+1), (−l+2), …,−2,−1, 0, 1, 2, …(l–1), (l–2),+l

Question 4

What are the possible values of m_s?

Answer 4

m_s=±1/2

Question 5

What is the physical interpretation of quantum number n?

Answer 5

Size of electron cloud

Question 6

When are elements stable in respect to electrons?

Answer 6

When all their

Question 7

What is the physical interpretation of quantum number l?

Answer 7

Shape of electron cloud

Question 8

What is the physical interpretation of quantum number m_s?

Answer 8

The spins of the electrons

Question 9

What is the physical interpretation of quantum number m_l?

Answer 9

orientation of electron cloud

Question 10

How does the coefficient of thermal expansion (a/alpha) vary?

Answer 10

It varies with the temperature

Question 11

Ionic bonding involves an electron transfer between a __ and a non-_____

Answer 11

metal; non-metal

Question 12

In ionic bonding, the metal ___ electrons while the non-metal __ electrons

Answer 12

donates; accepts

Question 13

Covalent bonds involve 1 or 2 non-___

Answer 13

non-metals