Question

spell the full name of the ion
1. N3-
2. Mg2+
3. O2+
4. Al3+

Answer 1

1) N^-3 (Nitrogen accepts 3 electrons); Name is Nitrogen ion (This is a anion)

2) Mg⁺² (Magnesium looses 2 electrons); Name is Magnesium ion (This is a cation)

3)

Here, charge represented wrongly. In general oxygen accepts two electron to show it nearest stable nobel gas configuration

O^-2 (Oxygen accepts 2 electrons); Name is Oxygen ion (This is a anion)

4) Al⁺³ (Aluminium looses 3 electrons); Name is Aluminium ion (This is a cation)

For monoatomic ions, element name wriiten as its ions.