<u><em>The element carbon (C) has an atomic number of 6, which means that all neutral carbon atoms contain 6 protons and 6 electrons. In a typical sample of carbon-containing material, 98.89% of the carbon atoms also contain 6 neutrons, so each has a mass number of 12</em></u>
<u><em>Explanation:</em></u>
<u><em>Protons and neutrons are always equal The element here is a Carbon molecule. The answer here is D 6</em></u>
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