A. This element has 12 electrons when the atom is electrically neutral.
B. This element is an alkaline-earth metals group. It has 20 protons.
C. This element has 7 electrons when the atom is electrically neutral.
D. An isotope of this element has 8 neutrons and a mass of 14.
E. This element has a chemical symbol Hg.
F. This element belongs to the same group as aluminum (Al) and has an atomic mass of 69.72.
what is the Atomic Number, Atomic mass, Number of Protons, Total Number of Electrons when Electrically Neutral, and, Element Symbol of each element.
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A. This element has 12 electrons when the atom is electrically neutral.
B. This element is an...
B. This element is an...
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