Nitrogen (N) has an atomic number of 7 and an atomic mass of 14. Which of the following correctly shows the electron arrangement for nitrogen?

A. 2, 7

B. 2, 5

C. 2, 2, 3

D. 2, 8, 4

What are the environmental advantages and disadvantages of a particular home site?

The dumping of wastewater from this pipe is an example of what type of pollution?

Select all that apply. The requirements for one type of atom to substitute for another in a solid solution are: All substitutions must be limited to the same element. An atom must be identical in size. An atom must be similar in size.

If both gases are at the same temperature, which one has the greater pressure? gas 1 because the particles are moving much faster gas 1 because it has fewer particles that are close together gas 2 because it has more particles that are colliding gas

If the solvent water can hold 10g of salt, but a solution contains 15g of salt would it be considered saturated, unsaturated, or supersaturated?

What type of mixture is 100 ml of water with a little bit of salt?

Which statement explains why meiosis haploid cells rather than diploid cells

Which factors can affect the amount of coco mix that can be dissolved in water? Check all that apply

If 25% of a radioactive element remains after 1,000 years, what is the half-life?

How many valence electrons do the alkaline-earth elements have? a. 1 b. 2 c. 7 d. 8