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Heisenberg’s uncertainty principle says that you cannot know the momentum or the position of an electron exactly.

The density of a 100-g piece of iron is twice as great as the density of a 50-g piece of iron.

Ionic bonds involve the transfer of electrons from one atom to another.

The subscript “2” in Mg(OH) tells you that the charge of the hydroxide ion is (-2).

While exploring an ancient Mayan tomb, you discover that the walls begin to move and are closing in on you. By exerting 400 N of force, you are able to keep a wall from coming closer. The work you are doing on the wall is

The rate of flow of electric charge is measured in units of

A neutrally charged atom that gains one or more electrons is called a(n)

In the Bohr model of the atom, the energy state of an electron could be described with one number. The quantum mechanical model of the atom requires how many numbers to do the same?

A 250-g ball travels at a velocity of 40 m/s. Its momentum is

Ultraviolet light waves carry more energy than infrared light waves.