Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test 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
13, 10 and 14
2
10, 13 and 14
3
13, 13 and 10
4
More than one of the above
5
None of the above