Which of the following best explains why the alkali metals have similar chemical properties? Choose 1
They are in the same period of the periodic table and so have the same number of valence
electrons.
B
They are in the same period of the periodic table and so have the same atomic number.
They are in the same group of the periodic table and so have the same number of valence electrons.
They are in the same group of the periodic table and so have the same atomic nu