Please help! Answer the next five questions based on the diagram:

How many electrons are in the n = 1 shell?

How many electrons are in the n = 2 shell?

How many electrons are needed to complete the n = 2 shell?

How many electrons are being shared between the two nitrogen atoms?

How many bonds exist between the two nitrogen atoms?

Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.

According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources?

What is the chemical formula for a compound between li and br? libr li2br libr2 libr3