Vocabulary Topic 1 - Atoms and the Periodic Table

Front

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

Back

Atomic number.

Front

What is the name of the tiny, negatively charged particle that moves around the outside of the nucleus of an atom?

Back

Electron.

Front

What do we call the sum of the protons and neutrons in the nucleus of an atom?

Back

Mass number.

Front

What term describes the ease and speed with which an element combines with other elements and compounds?

Back

Reactivity.

Tags

NGSS.MS-PS1-2

Front

What is the term used to describe a material that can be pulled out into a long wire?

Back

Ductile.

Front

What is the central part of an atom that contains protons and neutrons called?

Back

Nucleus.

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 periodic table?

Back

A tabular arrangement of the chemical elements, organized by their atomic number, electron configuration, and recurring chemical properties.

Tags

NGSS.HS-PS1-1