Question

9
Describe two properties that the elements in the first two
columns of the
Periodic Table share with one another.​

Answer 1

Explanation:

The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. ... Every element in the first column (group one) has one electron in its outer shell. Every element in the second column (group two) has two electrons in the outer shell.