A science student found a meteorite while hiking in a national park. A meteorite is a piece of rock that has fallen to Earth from space. It contained an element that was composed of 24 protons, 24 electrons, and 28 neutrons. What information does the science student need to identify the unknown element, and what is the element?

Group of answer choices

A: She needs the total number of atomic particles, 24 + 24 + 28 = 76. The element is Os, osmium.

B: She needs the number of neutrons, 28. The element is Ni, nickel.

C: She needs the number of protons, 24. The element is Cr, chromium.

D: She needs the total number of protons and neutrons, 24 + 24 = 48. The element is Cd, cadmium.

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