3.3 IONS

Question 1

what happens to metal atoms when forming metal ions?

Answer 1

• lose all of their outer- shell electrons to get a full outer-shel
• they become positively charged ions and are more stable

Question 2

what is oxidation?

Answer 2

the loss of electrons

Question 3

why would an ion have a 2+ charge?

Answer 3

because it lost 2 electrons

Question 4

what happens to non-metal atoms when forming non-metal ions?

Answer 4

• tend to gain electrons to fill their outer shell
• when they do this, they become negatively charged ions and are more stable

Question 5

what is reduction?

Answer 5

gaining electrons

Question 6

why would an ion have a 1- charge?

Answer 6

because it gained one electron

Question 7

how do the charges work across the columns in the periodic table?

Answer 7

+1 +2 +3 NOTHING -3 -2 -1 NOTHING

Question 8

what happens when metal and non-metal atoms react?

Answer 8

the metal atoms give electrons to the non-metal atoms

Question 9

what diagrams are drawn to show ionic bonding?

Answer 9

dot and cross diagrams

Question 10

what is the charge of Ag?

Answer 10

Ag+

Question 11

what is the charge of Cu?

Answer 11

Cu 2+

Question 12

what are the two charges of Fe?

Answer 12

Fe 2+ and Fe 3+

Question 13

what is the charge of Pb?

Answer 13

Pb 2+

Question 14

what is the charge of Zn?

Answer 14

Zn 2+

Question 15

charge of hydrogen:

Answer 15

H+

Question 16

charge of hydroxide:

Answer 16

OH-

Question 17

charge of ammonium:

Answer 17

NH4 +

Question 18

charge of carbonate:

Answer 18

CO3 2-

Question 19

charge of nitrate:

Answer 19

NO3 -

Question 20

charge of sulphate:

Answer 20

SO 4 2-