Convert 5.13 x 10^24 atoms of carbon to moles of carbon.

Well one mole of carbon specifies

6.022

×

10

23

INDIVIDUAL carbon atoms, i.e. a mole of carbon

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