Elements on the periodic table are organized by

group

period

Isotopes are atoms

If an atom has a mass number of 22 and an atomic number of 12, how many protons does it have?

If an atom has a mass number of 14 and an atomic number of 8, how many neutrons does it have?

If an atom has 13 protons and 11 neutrons what is its mass number?

If an atom has 6 protons and 5 neutrons, what is its atomic number?

Similar elements on the periodic table are in

Atoms with a positive net charge are

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