Compounds

Question 1

Define ‘compounds’

Answer 1

When different elements react, the atoms form chemical bonds with the other atom/s

Question 2

Compounds are usually ____ to separate out

Answer 2

Compounds are usually difficult to separate out

Question 3

What 3 things could making bonds involve?

Answer 3

1. Giving
2. Taking
3. Sharing

electrons

Question 4

Name, describe and explain the bonding between metals and non-metals

(also strength of bond)

Answer 4

IONIC Bonding

1. Metal atoms lose electrons to form positive ions
2. Non-metal atoms gain electrons to form negative ions

The opposite charges of the ions means they are STRONGLY ATTRACTED to each other

Question 5

Name, describe and explain the bonding between non-metals

Answer 5

COVALENT Bonding

Compound consists of molecules

Each atom shares an electron with another atom

Each atom has to make up enough bonds to fill its outer shell

STRONGEST CHEMICAL BONDS

Question 6

Do we need to know about metallic bonding for C1?

Answer 6

Nope, wait until C2

Question 7

What happens to the properties of the original elements when they form a compound?

Answer 7

Their properties completely change