Nicotine is 74.1% carbon, 8.6% hydrogen, and 17.3% nitrogen by mass. Its molar mass is about 160 g/mol. What is the molecular formula of nicotine?

particle   p is an electron and particle q is a neutron

it would be d. henry moseley

hope this !

and sorry if i'm late. have a good rest of your day! : d

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.