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WorksheetsAtoms and Molecules Pretest
Total questions: 26
Worksheet time: 19mins
Name
Class
Date
1.
A molecule is smaller than an atom.
a)
True
b)
False
2.
What charge does a Proton have?
a)
Negative
b)
Positive
c)
Neutral
d)
Contrated
3.
What charge does an Electron have?
a)
Negative
b)
Positive
c)
Neutral
d)
Complicated
4.
A molecule is________
a)
a glob of gelatinous goo
b)
smaller than an atom
c)
filled with raisons
d)
more than one atom bonded together
5.
Our current theory on atoms is perfect, and will never be adjusted or changed!
a)
True
b)
False
6.
What part of the atom tells you what element you have?
a)
Proton
b)
Neutron
c)
Electron
d)
Nucleus
7.
How many Hydrogen atoms are in Water (H2O)
a)
1
b)
2
c)
3
d)
4
8.
The smallest part of an element is an -
a)
atom
b)
comound
c)
mixture
d)
solution
9.
What is a proton?
a)
A positively charged particle in the nucleus of an atom.
b)
A negatively charged particle
c)
A neutrally charged particle in the nucleus of an atom.
d)
A professional ton
10.
What is a neutron?
a)
A positively charged particle in the nucleus of an atom.
b)
A negatively charged particle
c)
A neutrally charged particle in the nucleus of an atom.
d)
A professional ton
11.
What is an electron?
a)
A positively charged particle in the nucleus of an atom.
b)
A negatively charged particle
c)
A neutrally charged particle in the nucleus of an atom.
d)
A professional ton
12.
Name this compound: H2O
a)
Water
b)
Carbon dioxide
c)
Hydrogen peroxide
d)
Sulfuric acid
13.
Where are protons and neutrons located?
a)
in the nucleus
b)
in the electron cloud
c)
in the valence shell
14.
What is the charge on a proton?
a)
positive
b)
neutral
c)
negative
15.
What is the charge of an electron?
a)
positive
b)
neutral
c)
negative
16.
Atoms combine to form _______.
a)
electrons
b)
molecules
c)
nuclei
d)
neutrons
17.
Elements are made of
a)
Many types of atoms
b)
the Periodic Table
c)
One type of Atom
d)
Molecules
18.
Which of the four following items are made up of one or more molecules?
a)
Gold
b)
Hydrogen
c)
Salt
d)
Neon
19.
What are the basic building blocks for all matter?
a)
atoms
b)
elements
c)
compounds
d)
chemicals
20.
What do we call a substance consisting of a single atom?
a)
coefficient
b)
element
c)
compound
d)
molecule
21.
What do we call a chemical substance made up of 2 or more different types atoms bonded together?
a)
formula
b)
atom
c)
subscript
d)
compound
22.
All ____________ are made up of two or more atoms bonded together.
a)
atoms
b)
molecules
c)
electrons
d)
elements
23.
When __________ form, the elements lose there individual chemical properties and take on new properties.
a)
compounds
b)
atoms
c)
subscript
d)
formula
24.
A recipe for a chemical substance is called a ________ _________.
a)
coefficent
b)
chemical formula
c)
Oxygen
d)
atom
25.
H2O2← ?
This number tells the number of atoms present.
This number tells the number of atoms present.
a)
coefficient
b)
molecule
c)
subscript
d)
atom
26.
→2H2O
This number tells how many molecules are in a chemical equation.
This number tells how many molecules are in a chemical equation.
a)
coefficient
b)
subscript
c)
compound
d)
element
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