How many "angular momentum quantum numbers" (l) are in each orbital of an atom?

s = 0 p = 1 d = 2 f = 3

What is Avogadro's number (NA)?

The number of units in one mole of a substance; (6.02214 x 10^23).

What is the formula to calculate density?

Density = mass/volume (D = m/V)

A chemist weighed out 8.1 g of aluminum. Calculate the number of mol of aluminum she weighed out. Be sure your answer has the correct number of significant digits.

8.1 g/26.9815384 g/mol = 0.30 mol

What is the speed of light (c)?

2.998 x 10^8 m/s-1 (299792458 m/s)

What is Plank's Constant (h)?

6.62607 x 10^-34 J.s