The periodic table is arranged in rows and columns. From left to right along a row, the atomic number in each column
a. decreases by 2.
b. increases by 1.
c. decreases for gases.
d. increases for metals.

Which statements describe polyatomic ions? check all that apply. polyatomic ions have many charges. polyatomic ions have one overall charge. polyatomic ions repel other ions to form ionic bonds. polyatomic ions attract other ions to form ionic bonds. polyatomic ions are made up of only one type of atom. polyatomic ions are made up of two or more types of atoms.

The pressure in a fluid is affected by which characteristics of that fluid

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?