Review: Atomic Structure

A(n) _______ is the basic building block of all matter.

• atom
• compound
• molecule

What ingredients make up every atom?

• protons
• neutrons
• electrons
• all of the above

The ______ is located in the center of an atom.

• nucleus
• electron cloud

The region around the center of an atom is called the ___.

• nucleus
• electron cloud

What particles are found in the nucleus of the atom?

• electrons and protons
• electrons and neutrons
• protons and neutrons
• protons, electrons, and neutrons

What particle is found in the electron cloud?

• protons
• neutrons
• electrons
• hmmm...this is a tough one

A proton has a ___ charge.

• positive
• negative
• neutral or no charge

A neutron has a ___ charge.

• positive
• negative
• neutral or no charge

An electron has a ___ charge.

• positive
• negative
• neutral or no charge

What unit do we use to measure the mass of atoms?

• grams
• milligrams
• amu