Sunday, August 30, 2020

Periodic classification of elements MCQ

quiz in Javascript

Practice set 1

`mock test`

Question 1 of 15

Which of these belongs to the same period A(atomic number =2) B(atomic number =10) C(atomic number =5)

A, B

B, C

C, A

D, F

Good Try!
You Got out of answers correct!
That's

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