metals and ionic compounds

Question 1

3 types of bonding

Answer 1

metallic bonding
covalent bonding
ionic bonding

Question 2

cation

Answer 2

a cation forms when electrons are lost from a metal atom .They form positive ions.

Question 3

anion

Answer 3

Anions are formed when an atom gains one or more electron. They form negative ions

Question 4

why are metals good conductors of electricity

Answer 4

metals have delocalised electrons which are free to move.

Question 5

why are metals malleable

Answer 5

because the delocalised electrons allow the atom to slide over each other so that they can be shaped

Question 6

why are metals lustrous

Answer 6

Because the delocalised electrons reflect light.

Question 7

what is ionic bonding

Answer 7

When metal and non metal ions bond by electrostatic forces

Question 8

how are the cations and anions held together by

Answer 8

electrostatic attraction

Question 9

what is electrostatic attraction

Answer 9

electrostatic attraction is the attraction between the postiive and negative ions

Question 10

properties of ionic ocmpounds

Answer 10

• Hard and have a high melting point
• brittle
• can conduct electricity if they dissolve in water or are melted
• Some salts are solubable