What is the atomic number of Bismuth?
14
34
83
84
Correct answer is C
No explanation has been provided for this answer.
What is the atomic number of Lead?
82
90
102
123
Correct answer is A
No explanation has been provided for this answer.
What is the atomic number of Thallium?
56
77
81
95
Correct answer is C
No explanation has been provided for this answer.
What is the atomic number of Mercury?
77
80
85
90
Correct answer is B
No explanation has been provided for this answer.
What is the atomic number of Gold?
79
80
81
82
Correct answer is A
No explanation has been provided for this answer.