Properties of Elements

A(n) ___________ is a pure substance made of only one type of atom.

• compound

• element

• proton

• electron

An atom is made up of how many different types of subatomic particles?

• one

• two

• three

• four

Where are protons found in an atom?

• The nucleus

• Energy level

• The atomic mass

• By electrons

What are the rows of the Periodic Table of Elements called?

• Columns

• Groups

• Periods

• Lines

The numbered row of the Periodic Table of Elements tells you how many ________ an element has.

• neutrons

• protons

• atoms

• energy levels

Examples of elements that are gases and not reactive are called _____________.

• Metals

• Non-metals

• Metalloids

• Noble gases

What are the columns of the Periodic Table of Elements called?

• Columns

• Groups

• Periods

• Lines

__________ are good conductors of electricity; they are often shiny solids at room temperature.

• Non-metals

• Metalloids

• Metals

• Noble gases

The _________ tells you how many protons an element has.

• atomic number

• atomic mass

• energy levels

• electrons

To find the number of neutrons, you subtract the atomic ___________ from the atomic __________.

• mass; number

• number; mass

• electrons; protons

• neutrons; electrons