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Atoms
Elements
Molecules
Compounds
Mystery
100
Atoms are composed of these 3 subatomic particles?
What is protons, neutrons, and electrons?
100
Substance made up of only one kind of atom.
What is an element?
100

Two hydrogen atoms and one oxygen molecule make up one molecule of this.

What is one molecule of water?

100
The chemical formula for table salt.
What is NaCl?
100

How elements are organized on the Periodic Table.

What are Protons?

200
Particle with a neutral charge in an atom.
What is a neutron?
200

H is the chemical symbol for this element.

What is hydrogen?

200
The number of sodium atom in table salt. Hint: the symbol for table salt is NaCl
What is 1 sodium atom?
200
The chemical symbol for water.
What is H2O?
200
The 3 states of matter.
What is solid, liquid, gas?
300
Center of the atom that makes up most of the atom's mass.
What is the nucleus?
300
Chart used by scientist to list all the elements.
What is the periodic table?
300

All matter in the universe can be described as this.

What is atoms?

300
The 2 in the chemical formula H2O means this.
What is two atoms of hydrogen?
300

The most abundant element in Earth's Atmosphere.

What is Nitrogen?

400
Particles located in the nucleus of an atom.
What is protons and neutrons?
400
The number of hyrogen atoms in a molecule of H2.
What is two?
400

The definition of a molecule.

What is a particle that contains more than one atom joined together?

400

The small number placed to the right of the element.

What is the subscript?

400

The most abundant element on Earth.

What is Hyrdogen?

500

If an atom has more electrons than protons, what would the overall charge of the atom be?

What is Negative?

500

The letters used to represent an element on the periodic table.

What is a chemical symbol?

500

The number of carbon atoms in carbon dioxide. 

(Hint: the chemical formula is CO2)

What is one?

500
The definition of a compound.
What is two or more different atoms joined together?
500

The creator of the Periodic Table of Elements.

Who is Dmitri Mendeleev?