Periodic Table

Front

What is the total number of elements that are in their liquid state at room temperature?

Back

2

Front

Which element has an atomic mass of 19?

Back

Fluorine

Front

How do you find the number of neutrons in an atom?

Back

Atomic Mass - Atomic Number

Front

How is the modern periodic table of elements arranged?

Back

By Atomic Number

Front

Are atomic mass and atomic number the same thing?

Back

No

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What does atomic mass represent?

Back

The average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What is a period in the periodic table?

Back

A horizontal row of elements in the periodic table.

Front

What is a group in the periodic table?

Back

A vertical column of elements in the periodic table.

Front

What are metalloids?

Back

Elements that have properties of both metals and nonmetals.