Which of the following has the electron configuration of ?

Which of the following has the electron configuration of ?

Which of the following has the electron configuration of ?

An atom of phosphorus has 15 protons, 16 neutrons, and 15 electrons. What is the atom's mass number?

An atom of phosphorus has 15 protons, 16 neutrons, and 15 electrons. What is the atom's mass number?

An atom of phosphorus has 15 protons, 16 neutrons, and 15 electrons. What is the atom's mass number?

Which of the following variables identifies the sublevel that has three orbitals?

Which of the following variables identifies the sublevel that has three orbitals?

Which of the following variables identifies the sublevel that has three orbitals?

The following is a modified true/false question. In it, you must decide if each individual statement is true (T) or false (F). If both are true, then you must also decide if the second statement is a correct explanation (CE) of the first statement.

I: Atoms in the alkaline earth metal group have smaller ionic radii than their atomic radii

BECAUSE

II: atoms in this group usually lose electrons in order to become ions, resulting in the ion lacking the outermost energy level present in the atom.