railway RRB Technician Grade 3 Mock Test 2024 General Science Chemistry Chemical Bond and Molecular Structure
An ion X3+ is obtained from an element X (atomic mass 27 and atomic number 13). The number of protons, electrons and neutrons in X3+ is respectively:
1
14, 13 and 10
2
10, 13 and 14
3
13, 13 and 10
4
13, 10 and 14