Periodic Table

Front

Most of the mass of an atom is found in its _____

Back

nucleus

Front

Which color on the periodic table corresponds with the metalloids?

Back

bright yellow

Front

All of these properties describe metals except...

Back

brittle

Front

What is the number of protons that the element in this image contains?

Back

7

Front

A negatively charged subatomic particle that orbits the nucleus of an atom is called a _____

Back

electron

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What are metalloids?

Back

Elements that have properties of both metals and nonmetals.

Front

What is the significance of the periodic table?

Back

It organizes elements based on their atomic number and properties.

Front

What is a proton?

Back

A positively charged subatomic particle found in the nucleus of an atom.

Front

What is a neutron?

Back

A neutral subatomic particle found in the nucleus of an atom.