Question

Which of the following is true about two neutral atoms of the element zinc?
They will always have different masses. Electrons are missing in both the atoms. Both have an equal number of protons. They have different properties.

Answer 1

It isn't specified which neutral atom of zinc it pertains to. There are 5 stable isotopes of Zinc. It could be any of those. However, one thing is true for all possible conditions. These neutral atoms would have the same number of protons because they are of the Zinc element. It would always have 30 protons when neutral. So, the answer is: Both have an equal number of protons.

Answer 2

C) Both have an equal number of protons

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