Atoms

Front

What are the two sub-atomic particles that make up the nucleus of an atom?

Back

Proton and Neutron

Front

What is the atomic mass of a nitrogen atom?

Back

14.007

Front

What is the center of an atom called?

Back

Nucleus

Front

How many known elements are there in the periodic table?

Back

118

Front

How many neutrons does a titanium atom have if its atomic mass is 47.87 and its atomic number is 22?

Back

25.87

Front

What is the smallest unit of matter?

Back

Atom

Front

What are electrons?

Back

Negatively charged sub-atomic particles that orbit the nucleus of an atom.

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of a neutron?

Back

Neutral (no charge)

Front

What is the charge of an electron?

Back

Negative