An atom consists of protons, electrons, and neutrons. Sodium (Na) consists of 11 protons and is very reactive.
What is an atom?
An atom consists of protons (positive charged), electrons(negative charged), and neutrons (no charge). It is an arrangement between them.
The atoms containing 11 protons and 1 valence is sodium and it is highly reactive.
Therefore sodium (Na) is the atom containing 11 protons and 1 valence.
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