Select every statement that is true concerning the Lewis dot structure for BeC2N2 (a linear molecule with beryllium in the center).?

Question

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There is at least one atom that does not have 8 electrons.

There is at least one atom that has more than 8 electrons.

There is at least one double bond. (Triple bonds do not count as double bonds.)



There is at least one triple bond.

There is at least one atom with a nonzero formal charge.

Answer 1

A linear structure for BeC2N2 might be :N≡C-Be-C≡N:

Following this lewis dot structure (Be can have less than 8 electrons), the following statements would be true

There is at least one atom that does not have 8 electrons (that would be Be)

There is at least one triple bond (there are actually 2 between C and N)

None of the atoms has more than 8 electrons, so the second statement is false.

There are no double bonds, so statement 3 is false.

All atoms have a formal charge of zero, so the last statement is false.