an atom that has lost an electron is

Place the following in order of decreasing IE1. Cs Mg Ar

Identify the correct values for a 2p sublevel.

Predict the charge that a calcium ion would have.

On the electromagnetic spectrum, visible light is immediately between two other wavelengths. Name them.

Which of the following quantum numbers describes the size and energy of an orbital?

In which orbital below would an electron (on average) be closest to the nucleus?

Identify the species that has the smallest radius.

How many different values of ml are possible in the 5d sublevel?

Give the number of neutrons in P-3.