Y8 Chemistry Definitions - W1

Front

atom

Back

The smallest particle of an element

Front

atomic number

Back

The number by which elements are ordered in the periodic table

Front

chemical symbol

Back

One or two letters used to represent an element

Front

element

Back

A chemical substance made up of only one type of atom

Front

group

Back

A column in the periodic table

Front

metal

Back

A shiny element that conducts heat and electricity

Front

non-metal

Back

An element that typically does not conduct heat or electricity

Front

period

Back

A row in the periodic table

Front

periodic table

Back

A grid arrangement of all known chemical elements

Front

matter

Back

Any substance that takes up space and has mass