If we have a sample of silicon (Si) atoms that has 14 protons, 14 electrons, and 18 neutrons What is the name of this specific silicon isotope?

An isotope’s name uses its mass number, which is the total number of protons and neutrons. Here, 14 protons + 18 neutrons = 32; electrons are not included. So the isotope is silicon-32, choice D.

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