All of the following are SI base units of measurement, EXCEPT

For hydrogen, what is the wavelength of the photon emitted when an electron drops from a 4d orbital to a 2s orbital in a hydrogen atom? The Rydberg constant is 1.097 × 10-2 nm-1.

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

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

Give the ground state electron configuration for Se2⁻.

How many protons (p) and neutrons (n) are in an atom of strontium-90?

How many orbitals are there in the seventh shell?

Identify the charges of the protons, neutrons, and electrons.

For a given atom, identify the species that has the smallest radius.

How many orbitals are associated with an atom when n=5?