Atoms Vocabulary 2

Front

What are Alkali Metals?

Back

Soft, shiny metals with low melting points that react violently with air and moisture. They belong to Group 1 on the periodic table.

Front

What are Noble Gases?

Back

Odorless, colorless, monatomic gases with very low chemical reactivity, found in column 18 on the periodic table.

Front

What is a Periodic Group?

Back

A column of elements in the periodic table, there are 18 groups.

Front

What is an Octet?

Back

The eight-electron arrangement in the outer electron shell of noble-gas atoms.

Front

What are Halogens?

Back

The six elements in group 17 of the periodic table, including Fluorine, Chlorine, and Bromine.

Front

What is the Periodic Table?

Back

A tabular arrangement of the chemical elements, organized by increasing atomic number.

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 Transition Metals?

Back

Elements found in groups 3-12 of the periodic table, known for their ability to form various oxidation states.

Front

What are Lanthanides?

Back

A series of 15 metallic elements from Lanthanum (La) to Lutetium (Lu), known for their similar properties.

Front

What are Actinides?

Back

A series of 15 elements from Actinium (Ac) to Lawrencium (Lr), known for being radioactive.