Question

An electron can often be removed from an atom because it is
a. negative.
b. not attracted to the nucleus of the atom it surrounds.
c. affected by friction since the attraction to the nucleus is sometimes not very strong.
d. other nearby electrons will pull it off an atom if they get too close to the electron.

Answer 1

The answer would be C. Some atoms are not capable on attracting their electrons towards the center hence making it susceptible to being attracted by other surrounding atoms. This is called ionization energy. It is the measure of the energy needed to remove an electron from an atom.