What is the atomic number of Oxygen?
2
8
16
24
Correct answer is B
No explanation has been provided for this answer.
What is the atomic number of Nitrogen?
3
14
7
61
Correct answer is C
No explanation has been provided for this answer.
What is the atomic number of Carbon?
11
6
32
44
Correct answer is B
No explanation has been provided for this answer.
What is the atomic number of Boron?
5
85
100
22
Correct answer is A
No explanation has been provided for this answer.
What is the atomic number of Beryllium?
13
8
4
77
Correct answer is C
No explanation has been provided for this answer.