Periodic Table

Front

What is the Periodic Table?

Back

A tabular arrangement of chemical elements, organized by increasing atomic number, electron configuration, and recurring chemical properties.

Front

What is atomic radius?

Back

The distance from the nucleus of an atom to the outermost shell of electrons.

Front

Which element has the smallest atomic radius?

Back

Argon.

Front

Which element has the largest atomic radius?

Back

Sodium.

Front

What are metalloids?

Back

Elements that have properties of both metals and nonmetals, located along the staircase line on the Periodic Table.

Front

Where are metalloids located on the Periodic Table?

Back

The elements that touch the staircase except aluminum.

Front

What is ionization energy?

Back

The energy required to remove an electron from a neutral atom of an element.

Front

What are noble gases?

Back

Elements that are unreactive and have a full octet of electrons in their outer shell.

Front

What is the significance of the octet rule?

Back

Atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons, leading to greater stability.

Front

What are alkali metals?

Back

The group of elements in the first column of the Periodic Table, known for being highly reactive and having one electron in their outer shell.