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? 2, 8, 4
2, 7
2, 2, 3
2, 5

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

Name the element in group 17, period 2. (periodic table)

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.