Chapter 3.1

Question 1

Describe the exceptions to an octet

Answer 1

1) Incomplete octet
- >elements are stable with fewer than eight electrons in their valence shell
- >eg; helium, lithium, beryllium and boron

2) Expanded octet
- >any element in period 3 that can hold more than eight electrons

3) Odd number of electrons
- >any molecule with odd number of valence electrons

Question 2

What is a coordinate covalent bond

Answer 2

-if both of the shared electrons are contributed by only one of the two atoms