Which of the following is the electron configuration for an electrically neutral atom of oxygen? use the periodic table if you wish.

1s22s22p6

1s22s22p44d2

1s22s2

1s22s22p4

Which statement is a reason to support population regulation? a) it is unethical for us to control birth control rates b) humans have the freedom to produce as many children as desired c) the gap between the rich and poor has been narrowing since 1960 d) billions more people on the earth will intensify many environmental and social problems

There is a single path for electrons. the current decreases when additional resistors are added. the current will be the same in each resistor. these statements best describe a(n) circuit.

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?