Chapter 8 Chemical Bonding (Lewis Structures)

Question 1

What are the outermost electrons called?

Answer 1

Valence
-in the last shell # but can include s, p, & d

Question 2

What is involved in atoms form chemical bonds?

Answer 2

Only the valence electrons
(Outer most)

Question 3

What is the electron configuration of Li?

What is its outermost shell?

What is the group number that lithium is in?

Answer 3

Li 1s2 2s1

Outer most shell is 2s shell

Group # = # of valence electrons

Question 4

What is the electron configuration of Beryllium?

How many valence electrons does it have?

Answer 4

Be 1s2 2s2

2 valence electrons

Question 5

Lewis Dot Symbols

Answer 5

Carbon has four valance electrons, which means it has one on either side of it

Nitrogen has 5 valence electrons, which means it has one on each side of it & an additional 1 on the top

O = 6 valence 2 on top, 2 on left, 1 bottom 1 right

F=7valence 2on top, left, & bottom, 1 right

Ne=8 2 on each of 4 sides