Question

Match the group to the type of ions they form

Column A
1.
Group 1A:
Group 1A
2.
Group 2A:
Group 2A
3.
Group 3A:
Group 3A
4.
Group 4A:
Group 4A
5.
Group 5A:
Group 5A
6.
Group 6A:
Group 6A
7.
Group 7A:
Group 7A
8.
Group 8A:
Group 8A
Column B
a.+2
b.+1
c.-1
d.+4/-4
e.-3
f.0
g.+3
h.-2

Answer 1

Here is the matching of groups in Column A to the types of ions they typically form in Column B:

1. Group 1A: **b. +1**
2. Group 2A: **a. +2**
3. Group 3A: **g. +3**
4. Group 4A: **d. +4/-4**
5. Group 5A: **e. -3**
6. Group 6A: **h. -2**
7. Group 7A: **c. -1**
8. Group 8A: **f. 0**

To summarize:

- Group 1A forms +1 ions (e.g., Li⁺, Na⁺).
- Group 2A forms +2 ions (e.g., Mg²⁺, Ca²⁺).
- Group 3A typically forms +3 ions (e.g., Al³⁺).
- Group 4A can form +4 or -4 ions (e.g., C can form C⁴⁺ or C⁴⁻).
- Group 5A typically forms -3 ions (e.g., N³⁻).
- Group 6A typically forms -2 ions (e.g., O²⁻, S²⁻).
- Group 7A typically forms -1 ions (e.g., F⁻, Cl⁻).
- Group 8A (noble gases) typically do not form ions (f. 0).