Periodic Table

Front

What is the periodic table?

Back

A tabular arrangement of chemical elements, organized by increasing atomic number, which shows the relationships between them.

Front

What does the atomic number represent?

Back

The number of protons in the nucleus of an atom, which determines the element's identity.

Front

Which element has 5 protons?

Back

Boron.

Front

What is matter composed of?

Back

Atoms.

Front

What charge does a neutron have?

Back

Neutral.

Front

Which element was the first discovered?

Back

Carbon.

Front

What are the three main types of elements in the periodic table?

Back

Metals, nonmetals, and metalloids.

Front

What is the significance of the groups in the periodic table?

Back

Elements in the same group have similar chemical properties and the same number of valence electrons.

Front

What is a chemical symbol?

Back

A one or two-letter abbreviation used to represent an element.

Front

What is the difference between atomic mass and atomic number?

Back

Atomic mass is the weighted average mass of an element's isotopes, while atomic number is the number of protons.