Periodic Table Groups

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds with other atoms.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Front

How many valence electrons do elements in Group 4 have?

Back

Elements in Group 4 have 4 valence electrons.

Front

What is the significance of the Periodic Table Group?

Back

The Periodic Table Group indicates the number of valence electrons an element has, which determines its chemical properties.

Front

What are nonmetals?

Back

Nonmetals are elements that are typically dull, poor conductors of heat and electricity, and have low melting points.

Front

How many electron shells does sodium have?

Back

Sodium has 3 electron shells.

Front

What is a Period in the Periodic Table?

Back

A Period is a horizontal row in the Periodic Table that indicates the number of electron shells an element has.

Front

What are metalloids?

Back

Metalloids are elements that have properties of both metals and nonmetals, and are found along the zig-zag line on the Periodic Table.

Front

How can you determine the group of an element?

Back

You can determine the group of an element by looking at the number of valence electrons it has.

Front

What is the atomic number?

Back

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

Front

What are alkali metals?

Back

Alkali metals are the elements in Group 1 of the Periodic Table, known for having 1 valence electron and being highly reactive.

Tags

NGSS.HS-PS1-1