What is the atomic number of Nickel?
28
38
48
58
Correct answer is A
No explanation has been provided for this answer.
What is the atomic number of Cobalt?
14
19
21
27
Correct answer is D
No explanation has been provided for this answer.
What is the atomic number of Iron?
18
26
13
41
Correct answer is B
No explanation has been provided for this answer.
What is the atomic number of Manganese?
101
78
25
1
Correct answer is C
No explanation has been provided for this answer.
What is the atomic number of Chromium?
3.5
19
24
31
Correct answer is C
No explanation has been provided for this answer.