Periodic Table of Elements

Atomic Properties

Organized by row

Atomic number increases as you move left to right and top to bottom.

Starts at least to most massive elements

Alkali Earth metals

Transitional metals

Noble Gases and so on

Columns (Chemical Properties) go up and down

When a noble gas tends to perform, to want to bond, and behave in the same way as another noble gas or transitional metal tends to behave as another transitional metal.

The elements in each column have similar behaviors. For example, noble gases (like helium and neon) don't like to mix with other elements, and they all act the same way. Metals in the same column also react similarly.

If they ask for a similar atomic number AM

It's to the right and left

If they ask which has a similar chemical properties

Go up and down