Phosphorus

Phosphorus: atomic number 15

Statistics Online Homework help

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I need Immediate help..Thank you.

error in units

The units of resistivity don't come out right.

10^-8 Ohm * m
or
m Ohm * cm

the 'm' should be a 'mu', but unfortunately they both look the same in the latin alphabet.

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Polarity

Molecules of PF3 are polar, whereas molecules of PF5 are non-polar.

Is this all to do with molecular orbitals and those unpaired electrons? If so, could someone please help me with a molecular orbital energy-level diagram?

Nuclear Reaction for Phosphorus

I got this question from my natural science class

The following important nuclear reaction takes place on the surface of old stars:

What is the full identity of the unspecified product? Explain how you came to this conclusion. Are the ingredients commonly found in OUR environment?

Any help would be grately appreciated.

thank you

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