Question

Odd number of protons and neutrons are present in how many elements ?
(a) 'One
(b) Five
(C) Six
(d). Seven​

Answer 1

Answer:

Periodic table (redirect from Periodic table of the elements)

occurring isotopes: all of its atoms have six protons and most have six neutrons as well, but about one per cent have seven neutrons, and a very small fraction