Chapter 4

Question 1

Valence Electrons

Answer 1

Electrons on the outer shell.

Question 2

Core electrons

Answer 2

All electrons that are not valence electrons.

Question 3

Isoelectronic

Answer 3

Atoms of an element that have the same electron configuration.

Question 4

Lewis Symbols

Answer 4

The electron dot symbols around an elements symbol.

Question 5

Ionic Bonds

Answer 5

Elements that are already in their ionic state and they bond together to become more stable.

Question 6

Octet Rule

Answer 6

The rule of eight. Every outer wheel wants to be filled with 8 valence electrons.

Question 7

Covalent Bond

Answer 7

Elements that share electrons.

Question 8

Single bond

Answer 8

One pair of electrons are shared.

Question 9

Double Bond

Answer 9

2 pairs of electrons are shared

Question 10

Triple Bond

Answer 10

3 pairs of electrons are shared.

Question 11

Bonding Pairs

Answer 11

The shared pair(s) of electrons,

Question 12

Lone Pairs

Answer 12

The electrons that are not being shared.

Question 13

Electronegativity

Answer 13

A measure of an atom’s attraction for the electrons in a bond.

Question 14

What is the difference between and Ion and an atom?

Answer 14

An ion will either have a positive or negative charge. An atom has the same number of protons and electrons, therefore has no charge.

Question 15

What is the difference between covalent and ionic bonds?

Answer 15

In a covalent bond the atoms are bound together by shared electrons. In an ionic bond, the atom “donates” an electron.

Question 16

What is electronegativity, polar and non-polar bonds?

Answer 16

When the electronegativity is…
<0.5 it is Non-polar
0.5-2.0. it is Polar
>2.0 it is Ionic

Question 17

How can you find if a bond is polar, non-polar, or ionic?

Answer 17

You subtract their electronegativity from each other and see where it lies.