WorksheetsAtoms and The Periodic Table
Total questions: 11
Worksheet time: 6mins
Name
Class
Date
1.
Which two particles are inside the nucleus?
a)
Proton and Neutron
b)
Electron and neutron
c)
Electron and proton
d)
Nucleus and Proton
2.
Which of the following is true about electrons?
a)
Neutral
b)
In Nucleus
c)
Negative
d)
Positive
3.
Classify this: Hydrogen
a)
Element
b)
Compound
c)
Heterogeneous mixture
d)
Homogeneous mixture
4.
Classify this: NaCl
a)
Element
b)
Compound
c)
Heterogeneous mixture
d)
Homogeneous mixture
5.
Which statement BEST explains how periods on the periodic table are organized
a)
increasing atomic number from left to right
b)
increasing number of neutrons from left to right
c)
decreasing number of electrons from left to right
d)
decreasing atomic mass number from left to right
6.
Why might the products weigh less than the reactants after a chemical reaction
a)
a physical change occured
b)
atoms involved in the reaction lost mass
c)
Precipitates were created
d)
gases were released to the atmosphere
7.
which pair of elements has the MOST similar properties?
a)
Li and B
b)
I and Ca
c)
K and He
d)
N and P
8.
If a chemical reaction begins with 6 carbon atoms how many carbon atoms should be in the products?
a)
12
b)
6
c)
3
d)
2
9.
Why does a balanced chemical equation support the Law of Conservation of Mass?
a)
the amount of matter stays the same
b)
matter is destroyed
c)
one or more new stubstances are formed
d)
the total number of atoms increases
10.
If a chemical reaction begins with 6 carbon atoms how many carbon atoms should be in the products?
a)
12
b)
6
c)
3
d)
2
11.
Which of the following is NOT true about protons?
a)
positive
b)
In nucleus
c)
Larger than electrons
d)
smaller than electrons
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