What is the atomic number of Cerium?
78
100
58
88
Correct answer is C
No explanation has been provided for this answer.
What is the atomic number of Lanthanum?
1
57
45.8
99.9
Correct answer is B
No explanation has been provided for this answer.
What is the atomic number of Barium?
108
70
4
56
Correct answer is D
No explanation has been provided for this answer.
What is the atomic number of Cesium?
29
39
55
80
Correct answer is C
No explanation has been provided for this answer.
What is the atomic number of Xenon?
47
49
53
54
Correct answer is D
No explanation has been provided for this answer.