Migal is 4 years older than 2/3 of hapers age the sum of there ages are 34

n has four pairs of electrons in the valence shell, electrons repel one another ,n has 7 protons in its nucleus, and since n has 7 protons, it must fill the second shell, giving it 4 pairs of electrons. the electrons form 3 bonds and 1 lone pair of electrons. each pair of electrons repels the other pairs, so they are equally far apart.

so all of the above

i think a, hope it .

explanation:

thats a little if u want the answer just look it up on google thats what i do haha : )