What does the first quantum number (n) describe? A. The spin that the electron has

B. Which orbital is being occupied

C. The type of orbital the electron is in

D. The energy level of the electron

Metals are dense, shiny, good conductors of heat and electricity, and easily lose electrons in chemical reactions. Nonmetals are not dense, dull, do not conduct heat and electricity, and tend to gain electrons. Metalloids are elements that have properties of both metals and nonmetals.

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