Samuels CHEM Atoms

Match it! Select the correct answer from the pull down...Good luck!

What is used to determine the mass number of an element?

The atomic number on the periodic table represents the number of

Which of the following is not part of the atomic theory of matter?

This has no definite shape or volume

The smallest unit of matter into which elements can be broken down into

This is the part of the atom where neutrons and protons are located.

An atom that has gained an electron and therefore has a negative charge is a(n)

If two atoms have different numbers of neutrons, then they are called