Matter, Elements and Atoms

Front

What is a subatomic particle with no charge?

Back

Neutron

Front

Which state of matter can be found in stars, lightning, and the aurora borealis?

Back

Plasma

Front

What are electrons located on the last shell or energy level of an atom called?

Back

Valence electrons

Front

What is equal to the number of protons plus neutrons in the nucleus of an atom?

Back

Atomic mass

Front

What is the smallest unit of matter that retains the identity of a substance?

Back

Atom

Front

What is the center of an atom called?

Back

Nucleus

Front

What is the positively charged subatomic particle in an atom?

Back

Proton

Front

What is the term for atoms of the same element that have different numbers of neutrons?

Back

Isotopes

Front

What is the term for the number of protons in the nucleus of an atom?

Back

Atomic number

Front

What is the term for a substance that cannot be broken down into simpler substances?

Back

Element