A member of the boron family has three valence electrons, while a member of the nitrogen family has?

The correct answer should be b let me know if i’m wrong

Answertechnician (a) is correct;

Year  1936,  lehman predicted that the earths 'inner core' is solid. she observed that the seismic signals during her study were bent and did not pass through instead bouncing back. later it was confirmed that the earth's inner core was solid made up of nickel-iron and had a molten outer core.