Question

This is how sodium appears in the periodic table.
The arrow is pointing to sodium's
11
number of neutrons.
number of valence electrons.
combined number of neutrons and protons.
combined number of electrons and protons.
Na
Sodium
22.99

Answer 1

Answer:

The combined number of neutrons and protons

Explanation:

The mass number of sodium is 22.99 which shows the number of neutrons and protons.

Answer 2

Answer:

combined number of neutrons and protons.

Explanation:

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