Atomic Number Mcqs

1- What is the atomic number of Hydrogen?

A. 0
B. 1
C. 2
D. 3

Answer : B. 1

2- What is the atomic number of Oxygen?

A. 6
B. 7
C. 8
D. 9

Answer : C. 8

3- Gallium has an atomic number of:

A. 31
B. 32
C. 33
D. 34

Answer : A. 31

4- Atomic number of Germanium is:

A. 29
B. 30
C. 31
D. 32

Answer : D. 32

5- What is the atomic number of Arsenic?

A. 31
B. 33
C. 34
D. 35

Answer : B. 33

6- Atomic number of Yttrium is:

A. 38
B. 39
C. 40
D. 41

Answer : B. 39

7- Atomic number of Zirconium is:

A. 40
B. 41
C. 42
D. 43

Answer : A. 40

8- Atomic number of Technetium is:

A. 42
B. 43
C. 44
D. 45

Answer : B. 43

9- Atomic number of Molybdenum is:

A. 42
B. 43
C. 44
D. 45

Answer : A. 42

10- Atomic number of Ruthenium is:

A. 34
B. 37
C. 44
D. 45

Answer : D. 45

11- Atomic number of Rhodium is:

A. 45
B. 46
C. 47
D. 48

Answer : B. 46

12- Atomic number of Palladium is:

A. 46
B. 47
C. 48
D. 49

Answer : C. 48

13- What is the atomic number of Indium?

A. 48
B. 49
C. 50
D. 51

Answer : B. 49

14- Atomic number of Iodine is:

A. 53
B. 54
C. 55
D. 56

Answer : A. 53

15- Atomic number of Xenon is:

A. 48
B. 50
C. 52
D. 54

Answer : D. 54

16- Atomic number 55 belongs to:

A. Caesium
B. Barium
C. Rubidium
D. Strontium

Answer : A. Caesium

17- Atomic number of Cadmium is:

A. 47
B. 48
C. 49
D. 50

Answer : B. 48

18- Atomic number of Antimony is:

A. 40
B. 47
C. 49
D. 51

Answer : D. 51

19- Atomic number of Tellurium is:

A. 51
B. 52
C. 53
D. 54

Answer : B. 52

20- Atomic number of Bismuth is:

A. 80
B. 81
C. 82
D. 83

Answer : D. 83

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