Question

(a) What is the difference between a cation and an anion ? Explain with examples.
(b) The valencies (or charges) of some of the ions are given below Ion Valency (Charge)
Ion Valency (Charge)
Sodium ion
1+
Nitrate ion
1â
Copper ion
2+
Sulphide ion
2â
Using this information, write down the formulae of (i) Sodium sulphide
(ii) Copper nitrate

Answer 1

Answer:

Cations and anions are both ions. The difference between a cation and an anion is the net electrical charge of the ion. Ions are atoms or molecules which have gained or lost one or more valencee electron giving the ion a net positive or negative charge. Cations are ions with a net positive charge.

Answer 2

Answer:

down below

Explanation:

cation are positively charged particles and form when atoms loose electron. anions are negatively charged particles and form when atoms gain electrons.

sodium sulphide formula:

                                        Na2S

copper nitrate:

                Cu(NO3)2

                                                 hope it's right!!