(1) Which of these elements belong to the third period?
A) beryllium B) calcium C) silicon D) scandium
Answers
Answered by
1
Answer:
C) silicon
Step-by-step explanation:
I think it will help you
Answered by
0
Answer:
Ok I will tell you
Step-by-step explanation:
Its answer is c) Silicon
Because in third period Their are 8 elements names as sodium, magnesium, aluminium, silicon, phosphorus,sulfur, chlorine and argon
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