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How many “dots” would the Lewis symbol for an atom of silicon have?

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What type of bonding is present in NaCl?

Solid sodium chloride, NaCl, is a(n):

What is the ground-state electron configuration of Scandium (Sc)?

Which of the following is the shortest bond? The number in parentheses is the bond energy.

What is the expected O-C-O bond angle in a carbonate ion (CO32-)?  

Here are two ball and stick models of two molecules with the same formulas but different structures: [first] is/are polar [second] forms hydrogen bonds

What is the correct formula of magnesium perchlorate?

What is the formula for the compound formed with calcium and chloride ions?