Question

Number of electron (e-)
Find the Number of valency electron (e-)
(a) chlorine Cl ➡ 17
(b) Aluminum Al ➡13
(c) Silicon Si ➡14
(d) Argon Ar ➡18
(e) Sodium Na ➡11
(f) potassium K ➡ 19
(g) Calcium Ca ➡20
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Answer 1

Answer:

1. 7
2. 3
3. 4
4. 0
5. 1
6. 1
7. 2

Explanation:

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Answer 2

1. 7
2. 3
3. 4
4. 0
5. 1
6. 1
7. 2

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