Elements on the Periodic Table

What are atoms?

Atoms are the tiny building blocks that make up all matter.

What are elements?

Elements are different types of atoms.

How many elements exist?

Over 100 elements exist in the universe.

What is the periodic table?

A chart that organizes all elements into rows and columns.

What is an element symbol?

A one‑ or two‑letter abbreviation for an element.

How are element symbols written?

First letter capitalized second letter lowercase.

Do element symbols always match the English name?

No some come from other languages.

Why are element symbols important?

They are used constantly in chemistry instead of full names.

What must TEAS students memorize about elements?

Common element names and their symbols.

What are periods?

Horizontal rows on the periodic table.

What are groups?

Vertical columns on the periodic table.

What is the key fact about groups?

Elements in the same group have similar characteristics and behaviors.

What does the staircase line on the periodic table show?

It divides metals from non‑metals.

Where are metals located?

To the left of the staircase.

Where are non‑metals located?

To the right of the staircase.

What is the one major exception?

Hydrogen is a non‑metal even though it sits on the left.

Why is knowing metal vs non‑metal important?

It helps identify patterns and predict element behavior.

What three things should you know for each common element?

Its name its symbol and whether it is a metal or non‑metal.

Why is memorizing common elements necessary?

The TEAS often asks questions without giving a periodic table.

What is the most important pattern about groups?

Elements in the same group act similarly.