Question

question 10 of 13
elements in the same column, or family/group, have the same number of-
protons
neutrons
electrons

Explanation:

Elements in the same group of the periodic table have the same number of valence electrons, which determines their chemical - reactivity and bonding behavior. Protons determine the element's identity and are different for different elements in a group. Neutron numbers can vary within an element (isotopes) and are not the same for elements in a group.

Answer:

C. Electrons (specifically valence electrons)