Atoms
Elements
Periodic Table
Trivia
100

The word "atom" is from the Greek wording meaning this.

Indivisible.

100

This element is the second element in the periodic table.

Helium

100

Elements in the table are listed in order of this increasing amount.

Atomic number

100

Bells are commonly made by alloying these two elements

Copper and tin.

200

These are formed when two or more atoms join together,

Molecules.

200

Each element's atomic number matches the amount of ____________ that it has.

The number of protons.

200

Elements on the table are grouped by similar _______________.

Chemical properties

200

These metals are commonly found in phones and other electronics.

Rare Earth Metals.

300

These three subatomic particles can be found in the nucleus of an atom.

Protons, neutrons, and electrons.

300

This element is the most common element in the universe.

Hydrogen

300

The current Periodic Table features this many elements.

118

300

This poisonous gas can be found in cleaning products.

Chlorine

400

This is the name for what holds subatomic particles together.

The strong force.

400

These gases are considered "majestic" because they do not react with other elements.

Noble Gases

400

Most of the elements (over 70%) in the periodic table are this type.

Metals

400

This chemical element's symbol is AU.

Gold

500

This element is commonly found in street signs.

Neon

500

This Russian scientist is credited with setting up the Periodic Table of Elements we use today.

Mendeleev

500

This metal combines with other elements to form bones.

Calcium

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