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WorksheetsCategory 1
Total questions: 70
Worksheet time: 3hrs 4mins
Name
Class
Date
1.
What is the name of the group that has the MOST reactive METALS in it?
a)
Alkaline earth
b)
Alkali
c)
transition
d)
actinides
2.
What is the name of the group that never reacts--ever ever they are stable with a full outermost ring!!!
a)
noble gases
b)
transition
c)
halogens
d)
borons
3.
Rows on the period table are called _____ while columns are called _____.
a)
groups, families
b)
groups, periods
c)
periods, groups
d)
families, groups
4.
An element with five valence electrons is
a)
phosphorus
b)
oxygen
c)
beryllium
d)
rubidium
5.
Why does group number 18 have the least reactive elements?
a)
They all have an odd number of protons.
b)
They all have an even number of protons.
c)
They have the largest masses.
d)
Their electron shells are the most filled and do not need to be very reactive.
6.
The elements in a column of the periodic table...
a)
have similar atomic numbers
b)
start with the same letter
c)
have similar properties
d)
are not related in any way
7.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
None of these
8.
Which of the following has a full outer level?
a)
Oxygen
b)
Neon
c)
Barium
d)
Carbon
9.
The part of the atom that determines the identity of the atom
a)
proton
b)
nucleus
c)
electron
d)
neutron
10.
How many electrons would an atom of Krypton have?
a)
83.80
b)
36
c)
12
d)
none
11.
What element is represented in this Bohr Model?
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
12.
Where on the periodic table are the metalloids found?
a)
Right Side
b)
Along the Zig Zag Line
c)
Right Side
13.
Where on the periodic table are most of the metals found?
a)
Right Side
b)
Along the Zig Zag Line
c)
Left Side
14.
Where on the periodic table are most of the nonmetals found?
a)
Right Side
b)
Along the Zig Zag Line
c)
Left Side
15.
Which particle is represented by the atomic number? (4.2)
a)
Protons
b)
Neutrons
c)
Electrons
d)
Both Protons and Electrons
16.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
17.
Element or compound?
H2O
H2O
a)
element
b)
compound
18.
Element or compound?
O2
O2
a)
Element
b)
Compound
19.
Which of the following is a compound?
a)
Co
b)
O2
c)
C
d)
CO2
20.
Which is the correct formula for:
three hydrogen (H)
one sulfur (S)
four oxygen (O)
three hydrogen (H)
one sulfur (S)
four oxygen (O)
a)
H3SO4
b)
HSO4
c)
H4S3O
d)
H2O
21.
How many elements are in H2O?
a)
1
b)
2
c)
3
d)
4
22.
Which of the following is NOT an element?
a)
H2O
b)
H2
c)
O2
d)
Au
23.
How many atoms are there TOTAL in:
H2SO4
H2SO4
a)
6
b)
5
c)
7
d)
3
24.
The red numbers in the image below represent ________
a)
subscripts
b)
coefficients
c)
I don't know, and don't want to try
d)
None of the answers are correct
25.
The blue numbers in the image below represent ________
a)
I don't know, and don't want to try
b)
coefficients
c)
subscripts
d)
none of the answers are correct
26.
In a chemical reaction, everything to the rightof the arrow is called ______________.
a)
Products
b)
Yields
c)
Molecules
d)
Reactants
27.
Is the following equation balanced or unbalanced?
Fe + S --> FeS
Fe + S --> FeS
a)
balanced
b)
unbalanced
28.
How many O's are in Al₂(SO₄)₃
a)
4
b)
12
c)
7
d)
24
29.
How many Hydrogen are in 4H2O?
a)
6
b)
8
c)
2
d)
4
30.
How many Magnesium are in 10MgCl2?
a)
10
b)
5
c)
20
31.
When materials combine to form new compounds it is a chemical change. Which example is a chemical change?
a)
baking powder fizzing
b)
water boiling
c)
ice melting
d)
sugar cube dissolving
32.
Tearing paper is an example of
a)
physical change.
b)
chemical change.
c)
chemical reaction.
d)
solution.
33.
If you break a piece of glass, the shape of the glass changes, but the properties in the fragments remain the same. Which of the following has occurred?
a)
A chemical change.
b)
A temperature change.
c)
A phase change.
d)
A physical change.
34.
Which process is a physical change?
a)
Rusting iron
b)
Burning coal
c)
Tarnishing silver
d)
Melting ice
35.
Which of the following does not show a chemical change?
a)
change of state of matter
b)
color change
c)
production of a gas
d)
all show a chemical change
36.
Mark is observing a burning candle. He notices the melted wax drips down the side of the candle and hardens again. The candle has____.
a)
formed a new substance
b)
undergone a physical change
c)
undergone a chemical change
d)
undergone a physical and chemical change
37.
A chemical change creates a ______.
a)
change in volume
b)
new substance
c)
mixture
d)
solution
38.
A different chemical substance is formed when _____.
a)
water boils
b)
metal rusts
c)
ice melts
d)
rock is crushed
39.
A teacher is demonstrating physical and chemical changes to her class. Which action should she use to demonstrate a chemical change?
a)
cutting a piece of paper
b)
folding a piece of paper
c)
tearing a piece of paper
d)
burning a piece of paper
40.
A group of students investigated physical and chemical changes using paper. The students recorded their observations in a table.
Which student correctly recorded all the changes that took place?
Which student correctly recorded all the changes that took place?
a)
Student 1
b)
Student 2
c)
Student 3
d)
Student 4
41.
The smell made from a decomposing fish.
a)
Chemical Change
b)
Physical Change
42.
Green bananas turning yellow on their own as they ripen.
a)
Chemical Change
b)
Physical Change
43.
a copper penny turning greenish after a few years.
a)
Chemical Change
b)
Physical Change
44.
Melting an ice cube
a)
Chemical Change
b)
Physical Change
45.
What is an example of a physical property?
a)
reactivity
b)
color
46.
Which is an example of a chemical reaction?
a)
paper cut into small pieces
b)
chocolate melting in a pan
c)
flour and sugar mixed in a bowl
d)
cookies baking in an oven
47.
Which of the following describes a precipitate?
a)
a liquid forms when a block of metal is heated
b)
a solid forms when one liquid is poured into another
c)
a gas forms when a solid is placed in a liquid
d)
bubbles form when an acid is poured on a rock
48.
Which is a physical change?
a)
digesting food
b)
burning natural gas
c)
exploding firework
d)
chopping onions
49.
What number indicates the nucleus?
a)
1
b)
2
c)
3
d)
4
50.
Where is most of the mass in an atom located?
a)
in the nucleus
b)
in the protons
c)
in the neutrons
d)
in the electrons
51.
Oxygen’s atomic number is 8. This means that an oxygen atom must have
a)
8 electrons
b)
8 protons
c)
8 neutrons
d)
a mass number of 8
52.
The particles with no charge in an atom are the _______.
a)
electrons
b)
neutrons
c)
protons
d)
protons and neutrons
53.
What is the mass number of this element?
a)
5
b)
27
c)
32
d)
59
54.
The positively charged particles of an atom are the ________.
a)
electrons
b)
protons
c)
neutrons
d)
protons & neutrons
55.
The negatively charged particles of an atom are the ______.
a)
electrons
b)
protons
c)
neutrons
d)
protons & neutrons
56.
What characteristic of an atom is determined by the number of protons?
a)
mass
b)
reactivity
c)
identity
d)
if the atom is an isotope
57.
What characteristic of an atom is determined by the number of protons?
a)
mass
b)
reactivity
c)
identity
d)
if the atom is an isotope
58.
The particles which have equal but opposite electrical charges are
a)
neutrons and protons
b)
neutrons and electrons
c)
protons and neutrons
d)
protons and electrons
59.
What is this called?
a)
Bohr's Model
b)
Electron Table
c)
Breakfast Table
d)
Periodic Table
60.
What contains more than one type of atom?
a)
Element
b)
Electron cloud
c)
Compound
d)
Nucleus
61.
The average mass of an atom of an element is known as
a)
Atomic number
b)
Atomic mass
c)
Molecular weight
d)
Isotope
62.
What is the atomic number?
a)
number of protons
b)
number of neutrons
63.
What is the mass number?
a)
the number of protons
b)
the sum of the number of protons and the number of neutrons in the nucleus of an atom
64.
an electron has this charge
a)
positive
b)
negative
c)
neutral
65.
a neutron has this charge
a)
negative
b)
positive
c)
neutral
66.
a proton has this charge
a)
negative
b)
positive
c)
neutral
67.
energy level one can contain at most _____ electrons.
a)
2
b)
8
c)
18
68.
___________ composed mostly of the protons and neutrons in the nucleus.
a)
atomic mass
b)
mass number
c)
atomic number
69.
A particle that moves around the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
70.
Electrons in the outermost energy level are called...
a)
Positrons
b)
Covalent electrons
c)
Ionic electrons
d)
Valence electrons
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