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Atoms
Elements
Periodic Table
Compounds and Mixtures
Molecules
100
A particle in an atom with a positive charge.
What is proton?
100
The element C.
What is carbon?
100
This number tells you the number of protons in an atom's nucleus.
What is atomic number?
100
Water is an example of a ___________.
What is compound?
100

Elements that are pure substances are easily broken down to simpler substances.


True

200
____________ are small particles that make up most types of matter on Earth.
What are atoms?
200
Isotopes of an element contain different numbers of ____________________.
What is neutrons?
200

Who created the periodic table?

dmitri mendeleev

200

The Definition of a compound 

A substance is two or more elements that can not be chemically undone.

200

Water, table salt, sugar, and rust are examples of                .

Compounds

300

Which has the atomic number of 10

Neon

300
Define the word Element.

A pure Substance composed of the same atoms 

300

How many elements are on the periodic table?

118

300

What is the definition of a mixture

Two or more substances that can be bond together and taken apart.

300

How many different elements are there in the molecule CCl4?

 3

400

Which is the correct formula for:
one carbon (C)
two oxygen (O)

CO2

400

The chemical name for SN is ____

Tin

400
This number reflects the number of neutrons and protons in the nucleus of an atom.
What is mass number?
400
The number of atoms in this compounds chemical formula C6 H12 O6.
What is 24 atoms?
400

Which element is one of the most abundant in both solid parts of Earth and in living matter?

Oxygen

500

What does C2 O5 Mean?

2 Carbon 5 Oxygen 

500
The chemical symbol for hydrogen is _________.
What is H?
500

The periodic table is put in order based on what?

Amotic Weight

500

H20 is considered a Compound or Mixture?

H2o is a Compound

500

Which element makes up most of Earth’s atmosphere?


Nitrogen