Q. Which of the following sets of atomic number belong to that of alkali metals?
A. 1, 12, 30, 4, 62
B. 37, 19, 3, 55
C. 9, 17, 35, 53
D. 12, 20, 56, 88
Answer: 37, 19, 3, 55
We will be happy to hear your thoughts
A. 1, 12, 30, 4, 62
B. 37, 19, 3, 55
C. 9, 17, 35, 53
D. 12, 20, 56, 88
Answer: 37, 19, 3, 55