Atomic Theory and Periodic Table Vocab

Front

What is a positive charge?

Back

More protons than electrons.

Front

What is the nucleus of an atom?

Back

The central part of an atom containing protons and neutrons.

Front

What are protons?

Back

Positively charged particles.

Front

What is a negative charge?

Back

More electrons than protons.

Front

What are metals?

Back

Materials that are typically hard, shiny, to the left of the stairstep line.

Front

What are neutrons?

Back

Neutral particles found in the nucleus of an atom.

Front

What is an electron?

Back

A negatively charged particle that orbits the nucleus of an atom.

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom.

Front

What is the periodic table?

Back

A tabular arrangement of elements organized by increasing atomic number.

Front

What are nonmetals?

Back

Elements that are typically dull, brittle, and found to the right of the stairstep line.