Question

What is the common characteristic of the elements of the same group in the periodic table?
A) Electrons in outer most shell B) Total number of electrons C) Total number of protons D) Atomic weight

Answer 1

Answer:

The periodic table also has a special name for its vertical columns. Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons.

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