General
Electronegativity
Polarity
100

What's the difference between ionic and covalent (in terms of elements involved)?

Ionic: Metal and non metal 

Covalent:Non metal and non metal

100

Is a bond between O-O polar or non polar?

Non polar

200

What is Electronegativity?

The measure of an atom's ability to attract electrons in a bond

300

What's the name of the electronegativity scale?

The Pauling Scale