Luigi consults his plumbing books and finds the table of metal densities shown below. With that, Luigi thinks he has enough to say with a good degree of certainty that the company did not, in fact, use copper
piping

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29.1-12=17.1the answer is this one

There is one s orbital, and there are three p orbitals, five d orbitals, and seven f orbitals. thus, the answer is b. do not confuse the number of orbitals in a subshell with the number of electrons the subshell can hold. each orbital can hold two electrons, so the capacity of an nf subshell is 14 electrons.

Idon't see the pic?

The answer is bhope this