Question

stable ions quick check
which property do the elements in each column of the representative elements series of the periodic table have in common? (1 point)
number of neutrons
number of protons
number of orbitals
number of valence electrons

Explanation:

In the periodic table, the representative elements (main - group elements) in each column (group) have the same number of valence electrons. The number of neutrons can vary within a group (due to isotopes). The number of protons increases as we move down a group (since each element has a unique atomic number, which is the number of protons). The number of orbitals (energy levels) increases as we move down a group (elements in higher periods have more electron shells). So the elements in each column of the representative elements series of the periodic table have the number of valence electrons in common.

Answer:

number of valence electrons