What is the atomic number of Platinum?
100
50
78
88
Correct answer is C
No explanation has been provided for this answer.
What is the atomic number of Iridium?
300
77
143
81
Correct answer is B
No explanation has been provided for this answer.
What is the atomic number of Osmium?
110
112
76
77
Correct answer is C
No explanation has been provided for this answer.
What is the atomic number of Rhenium?
75
76
77
78
Correct answer is A
No explanation has been provided for this answer.
What is the atomic number of Tungsten?
74
75
76
77
Correct answer is A
No explanation has been provided for this answer.