8th Grade Science Category 1&2 Vocabulary

Front

What is the neutral particle found in an atom's nucleus?

Back

Neutron

Front

What is the positively charged particle found in an atom's nucleus?

Back

Proton

Front

What is the sum of protons and neutrons in an atom called?

Back

Atomic mass

Front

What is the central area of the atom that contains protons and neutrons?

Back

Nucleus

Front

What are the columns in The Periodic Table of Elements that contain elements with the same valence electrons and reactivity called?

Back

Group

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of a neutron?

Back

Neutral

Front

What is the charge of an electron?

Back

Negative

Front

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

Back

Atomic number

Front

What do you call the horizontal rows in The Periodic Table of Elements?

Back

Period