Question

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Explanation:

Define atomic number

$$ \text{Atomic number} = \text{number of protons} $$

Define mass number

$$ \text{Mass number} = \text{protons} + \text{neutrons} $$

Define neutron calculation

$$ \text{Neutrons} = \text{mass number} - \text{atomic number} $$

Answer:

Match the periodic table terms:

Atomic number = number of <blank>protons</blank>.

Mass number = <blank>protons</blank> + <blank>neutrons</blank>.

Neutrons = mass number - <blank>atomic number</blank>.