2.5 Simple Molecules And Covalent Bonds

Question 1

What is a covalent bond

Answer 1

The sharing of a pair of electrons between 2 non-metal atoms which occurs so that both non metal atoms can achieve a full outer shell

Question 2

What is a molecule

Answer 2

Group of 2 or more elements held together by covalent bonds

Question 3

What is it called when atoms of different elements share electrons

Answer 3

Covalent compounds

Question 4

Quickly describe the bond strength and length of covalent compounds

Answer 4

Triple>double>single
Single>double>triple>

Question 5

What are the properties of simple molecular covalently bonded substances (4)

Answer 5

Weak IMF/ Van Der Waal’s s forces
Low MP+BP
Volatile-easily turn to gas
Cannot conduct electricity

Question 6

Why can simple molecular covalently bonded substances not conduct electricity

Answer 6

All the electrons are used in bonding so there are no free electrons or ions to carry charge