Chemistry, asked by Anonymous, 10 months ago

Which of the following belong to the same period?
Element : A B C
Atomic number: 2 4 10
O AB
O B, C
O C, A
O A, B and C

Answers

Answered by kikibuji

1

Answer:

b,c is the answer.... ...

A belongs to first period

B, C belong to second period

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