Parts of the
Periodic Table
Atoms and Particles
Valence
Group Names
Characteristics
100

The name of the columns of the periodic table.

What is the group or the family?

100

This number on the periodic square tells the number of protons in an atom.

What is the atomic number?

100

The number of electrons in the outer orbit of an atom.

What is a valence number?

100

The group of metals that are the most reactive.

What is Alkali metals?

100

These elements can be dull, have poor conductivity, and are usually brittle.

What are nonmetals?

200

The name of the rows in the periodic table.

What is a period?

200

This number on the element square tells the how many neutrons and protons are in the atom.

What is the atomic mass?

200

The group that has one valence electrons.

What is group 1 or the Alkali metals?

200

The group of metals that is second most reactive.

What is The Alkaline Earth Metals?

200

These elements have good conductivity, are malleable, and are usually shiny.

What is a metal?

300

The number of groups in the periodic table.

What is 18?
300

This equation tells how to find the number of neutrons in an atom.

What is Atomic Mass Number - Atomic Number?

300

The group that has a +2 oxidation number.

What is group 2 or IIA?

300

The group of nonmetals that are the most reactive.

What is the Halogens?

300

These metals are claylike, silvery gray, are explosive with water, and can be cut easily with a knife.

What are the Alkali Metals and Alkaline Earth Metals?

400

The number of this arrangement is seven.

What is the number of rows or periods?

400

This part of the element square tells the abbreviation for the element.

What is the symbol?

400

The group that has a -3 oxidation number (charge).

What is group 15?

400

The group of elements with full octets in the valence level of electrons.

What are the Noble Gases?

400

These elements are reluctant to share their valence electrons.

What are the noble gases?

500

The name or shape of the line that divides the metals from the nonmetals.

What is the stairstep line?

500

The scientist who figured out the arrangement of the modern periodic table.

Who is Mendeleev?

500

The group that has 8 valence electrons.

What is group 18 or the Noble gases?

500

The element groups that are not found in a pure state in nature.

What are group 1, group 2, and group 17?
500

These elements easily combine with Group I (Alkali Metals).

What are the Halogens or group 8?

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