Atoms

Front

Most of the mass of an atom is found in the ______.

Back

nucleus

Front

Particles in an atom that are neutral and have no charge are __________.

Back

neutrons

Front

From the diagram, which particles are indicated with the arrow?

Back

protons and neutrons

Front

These particles orbit around the nucleus of an atom. What are they called?

Back

electrons

Front

How does the size of a proton compare to the size of a neutron?

Back

equal

Front

What is the center of an atom called?

Back

nucleus

Front

What are the positively charged particles in an atom?

Back

protons

Front

What are the negatively charged particles in an atom?

Back

electrons

Front

What is the term for the region around the nucleus where electrons are likely to be found?

Back

electron cloud

Front

What is the charge of a neutron?

Back

neutral