Column A

1.
How will Chlorine (Cl) achieve a stable electron configuration?
2.
How will Strontium (Sr) achieve a stable electron configuration?
3.
How will Phosphorous (P) achieve a stable electron configuration?:
4.
How will Oxygen (O) achieve a stable electron configuration?
5.
How will Potassium (K) achieve a stable electron configuration?
6.
How will Thallium (Tl) achieve a stable electron configuration?
Column B
a.It will lose 3 valence electrons.
b.It will lose 1 valence electron.
c.It will gain 3 valence electrons.
d.It will gain 1 valence electron.
e.It will gain 2 valence electrons.
f.It will lose 2 valence electrons.

1. Column A: f. It will lose 1 valence electron. (Chlorine (Cl) will achieve a stable electron configuration by gaining 1 electron to fill its outermost shell, resulting in a full 8 valence electrons.)

2. Column A: e. It will gain 2 valence electrons. (Strontium (Sr) will achieve a stable electron configuration by losing 2 electrons from its outermost shell, resulting in a full 8 valence electrons.)

3. Column A: c. It will gain 3 valence electrons. (Phosphorus (P) will achieve a stable electron configuration by gaining 3 electrons to fill its outermost shell, resulting in a full 8 valence electrons.)

4. Column A: d. It will gain 1 valence electron. (Oxygen (O) will achieve a stable electron configuration by gaining 2 electrons to fill its outermost shell, resulting in a full 8 valence electrons.)

5. Column A: b. It will lose 1 valence electron. (Potassium (K) will achieve a stable electron configuration by losing 1 electron from its outermost shell, resulting in a full 8 valence electrons.)

6. Column A: a. It will lose 3 valence electrons. (Thallium (Tl) will achieve a stable electron configuration by losing 3 electrons from its outermost shell, resulting in a full 8 valence electrons.)

wrong

I apologize for the error. Here is the correct matching:

1. Column A: d. It will gain 1 valence electron. (Chlorine (Cl) will achieve a stable electron configuration by gaining 1 electron to fill its outermost shell, resulting in a full 8 valence electrons.)

2. Column A: f. It will lose 2 valence electrons. (Strontium (Sr) will achieve a stable electron configuration by losing 2 electrons from its outermost shell, resulting in a full 8 valence electrons.)

3. Column A: c. It will gain 3 valence electrons. (Phosphorus (P) will achieve a stable electron configuration by gaining 3 electrons to fill its outermost shell, resulting in a full 8 valence electrons.)

4. Column A: e. It will gain 2 valence electrons. (Oxygen (O) will achieve a stable electron configuration by gaining 2 electrons to fill its outermost shell, resulting in a full 8 valence electrons.)

5. Column A: b. It will lose 1 valence electron. (Potassium (K) will achieve a stable electron configuration by losing 1 electron from its outermost shell, resulting in a full 8 valence electrons.)

6. Column A: a. It will lose 3 valence electrons. (Thallium (Tl) will achieve a stable electron configuration by losing 3 electrons from its outermost shell, resulting in a full 8 valence electrons.)