What is the mass number of an atom that has 4 protons, 6 neutrons, and 4 electrons?

What is the atomic number of an atom that has 6 protons, 6 neutrons, and 6 electrons?

What is the charge of an atom that has 7 protons, 7 neutrons, and 10 electrons?

Which of the following pairs are isotopes of the same element?

Ions have

isotopes have

Which of the following describes protons?

How many valence electrons does an atom of nitrogen (N) have?

An ion that consists of 7 protons, 6 neutrons, and 10 electrons is a(n)

How many pairs of electrons are shared in a molecule of H2?

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