Question

This chart lists information from the periodic table about several elements. Which answer correctly fills in the blanks?

Element Atomic Number Number of Electrons Number of Neutrons Atomic Mass
Sodium 11 12 23
Nitrogen 7 7 14
Potassium 19 19 39
Sulfur 16 16 16


A.
Sodium has an atomic number of 11; nitrogen has 7 electrons; potassium has 19 neutrons; sulfur has an atomic mass of 48.

B.
Sodium has an atomic number of 11; nitrogen has 7 electrons; potassium has 20 neutrons; sulfur has an atomic mass of 32.

Answer 1

C.
Sodium has an atomic number of 12; nitrogen has 7 electrons; potassium has 19 neutrons; sulfur has an atomic mass of 16.

D.
Sodium has an atomic number of 23; nitrogen has 14 electrons; potassium has 39 neutrons; sulfur has an atomic mass of 48.

Answer 2

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