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Atoms, Molecules, and The Periodic Table

Total questions: 9

Worksheet time: 7mins

Name
Class
Date
1.

What are the subatomic particles?

a)

atoms, electrons, and neutrons

b)

electrons, neutrons, and protons

c)

protons, lectrons, nucleus

d)

protons and neutrons

2.

Which subatomic particle(s) does the nucleus contain?

a)

Protons

b)

Electrons and neutrons

c)

Protons and neutrons

d)

Electrons

3.

Who discovered The Periodic Table?

a)

Dmitri Mendeleev

b)

Niels Bohr

c)

John Dalton

d)

Dymitrie Mendaleaves

4.

The atomic number of an element is equal to...

a)

the amount of electrons and protons

b)

the amount of neutrons

c)

the amount of electrons

d)

the amount of protons and neutrons

5.

Molecules are a group of ___________ fused together.

a)

elements

b)

chemicals

c)

pure substances

d)

atoms

6.

Molecules are made up of...

a)

molecules

b)

compounds

c)

atoms

d)

air

7.

Molecules are split up to make new molecules in ...

a)

suspensions

b)

chemical reactions

c)

physical reactions

d)

chemical changes

8.

The center of an atom is called the ...

a)

neutrons

b)

electrons

c)

nucleus

d)

protons and neutrons

9.

Which of these are found in the square for each element?

a)

atomic radius, atomic mass, and name of element

b)

symbol, name, atomic mass, and uses

c)

atomic number, uses, atomic mass, and picture

d)

atomic number, atomic mass, name, and symbol