Ans the question fast......If correct I'll mark as brainliest and 15 points will be given....
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Answered by
0
Answer:
he 2 0 18
s 6 via 16
o 6 via 16
k 1 1 ia 1
Explanation:
Answered by
11
Answer:
Element
- Helium
- Sulphur
- Oxygen
- Potassium
Valence electrons
- 2
- 6
- 6
- 1
Group number
- 18
- 16
- 16
- 1
Period number
- 1
- 3
- 2
- 4
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