How many protons, neutrons, and electrons are present in an atom of hafnium, Hf, with a mass number of
178 106 protons, 72 neutrons,
106 electrons 178 protons, 250 neutrons,
72 electrons 72 protons, 178 neutrons, 106 electrons
72 protons, 106 neutrons, 72 electrons
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Ответ:
106
props to the person above me
Explanation:
Ответ:
24
Step-by-step explanation: