Me! xd
how many valence electrons should you use to draw a lewis structure of ammonia (nh3)?

3

15

5

8

The ground state electron configuration of a phosphorous atom has  three unpaired electrons. they're in the 3p sublevel. the electron configuration is: , for a total of  15 electrons.

In the question "in a solution of brine  (salt water), what is the  salt? " the correct answer is a solute. a solute is a component of a  solution  dissolved in the solvent.

My best guess is that most of the earth would freeze causing an almost ice age like catastrophe

In science and engineering, the parts-per notation is a set of pseudo-units to describe small values of miscellaneous dimensionless quantities, e.g. mole fraction or mass fraction. ~hope dis