TCI U1T1 Vocab Flashcard

Front

What is the Periodic Table of Elements?

Back

A table that shows all known elements.

Front

What is the smallest part of an element?

Back

atom

Front

True or False: Gold is an element because it only contains gold atoms.

Back

True

Front

What is an element?

Back

A pure substance that cannot be separated into simpler substances by physical or chemical means.

Front

Give an example of an element.

Back

Gold (Au) is an example of an element.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

Is water an element?

Back

No, water is a compound made of hydrogen and oxygen.

Front

What are the three states of matter?

Back

Solid, liquid, gas.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded.

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom.