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Chemistry 1st Nine Weeks Study Guide

Total questions: 105

Worksheet time: 3hrs 55mins

Name
Class
Date
1.

Science starts with gathering ________________________ about the natural world.

a)

hypothesis

b)

Answers

c)

Experiments

d)

Knowledge

2.

The two major branches of physical science are:

a)

Physics and biology

b)

Geology and chemistry

c)

Biology and chemistry

d)

Physics and chemistry

3.

The study of all forms of matter, including how matter interacts with other matter, is called

a)

Geology

b)

Biology

c)

Chemistry

d)

Physics

4.

A model used to predict the weather is:

a)

Conceptual model

b)

Physical model

c)

Mathematical model

d)

none

5.

Tool used to measure volume

a)

Balance

b)

Graduated cylinder

c)

Meter stick

d)

Spring scale

6.

Tool used to measure mass is:

a)

Balance

b)

Graduated cylinder

c)

Meter stick

d)

Spring scale

7.

SI units to measure volume are:

a)

Cups and quarts.

b)

Gallons

c)

Liters and cubic meter

d)

Kilograms and pounds

8.

A hypothesis is an explanation based on:

a)

Observations

b)

Research

c)

Both observations and research

d)

Testing

9.
A _____________________ is something that scientists use to represent an object or process
a)
mass
b)
matter
c)
model
d)
weight
10.
___________________ is an explanation for many observations
a)
meniscus
b)
weight
c)
law
d)
theory
11.
__________________ is a summary of manu experimental results and observations
a)
law
b)
theory
c)
physics
d)
biology
12.
___________________ is the process of collecting information about the world
a)
internet
b)
Ask Siri
c)
science
d)
Physics
13.
What is 2D and cannot be manipulated but still explains how something looks or works?
a)
globe
b)
skeleton
c)
conceptual model
d)
physical model
14.

When scientists follow the steps of an experiment procedure, they're doing it in order to:

a)

Test the hypothesis

b)

Determine the problem they need to solve

c)

Establish a control group

d)

Waste time

15.

In a science experiment, what is it called when a scientist records and examines information?

a)

Collecting and analyzing data

b)

Researching background information

c)

Drawing conclusions

d)

Establishing a hypothesis

16.

What is the formula for calculating density?

a)

Density = Mass / Volume

b)

Density = Mass + Volume

c)

Density = Mass x Volume

d)

Density = B x Y x O x C

17.

Which of the following distances is largest?

a)

10 m

b)

10 cm

c)

10 mm

d)

10 dm

18.
A type of medicine is given in a 100 miligram dosage.  The medicine comes in a  12 gram bottle. How many 100 milligram doses are in a bottle?
a)
1200
b)
.12
c)
120
d)
12,000
19.
Which of the following is correct scientific notation?
a)
20.35 x 104
b)
.2035 x 104
c)
2035 4
d)
2.035 x104
20.
What is the standard form?
1.245 x 103
a)
0.001245
b)
12.45
c)
1245
21.
How would you write 4.3756 x 104 in standard form?
a)
437,560,000
b)
0.00043756
c)
43,756
22.
Put the following in scientific notation:
23,948
a)
23.948 x 103
b)
2.3948 x 104
c)
2.3948 x 10-4
d)
0.23948 x 105
23.
How many significant figures does the following number have: 0.002040
a)
6
b)
4
c)
3
d)
2
24.
How many significant figures does the following number have: 0.998005
a)
9
b)
10
c)
6
d)
5
25.
How many significant figures does the following number have: 100.00210
a)
7
b)
5
c)
10
d)
8
26.
How many significant figures does the following number have: 100.3
a)
4
b)
3
c)
5
d)
2
27.
Which of the following objects is a liquid?
a)
Ice cube
b)
Apple juice
c)
Rubber ball
d)
Plastic spoon
28.
Substance that consists of one type of atom.  It is a pure substance. Found on the Periodic Table. 
a)
Element
b)
Compound
c)
Mixture
d)
I don't know
29.
Combinations of 2 or more substances (elements and compounds) that are physically blended together. 
a)
Compound
b)
Mixture
c)
Element
d)
Substance
30.
An example of ...
a)
A mixture
b)
A compound
c)
An element 
31.
What is the term for combining 2 or more DIFFERENT atoms together?
a)
atoms
b)
elements
c)
molecules
d)
compounds
32.
Which of the following is a physical property of matter? 
a)
Flammability
b)
Reactivity
c)
Solubility
d)
Combustability 
33.
Physical or chemical change?
cutting a piece of paper in half
a)
Physical
b)
Chemical
34.
Physical or chemical change?
a sliced banana turns brown after sitting out for a while
a)
Physical
b)
Chemical
35.
Physical or chemical change?
sugar is dissolved into hot tea
a)
Physical
b)
Chemical
36.
Physical or chemical property?
density
a)
Physical
b)
Chemical
37.
How are physical and chemical properties different?
a)
Chemical properties only apply to chemicals. Physical properties apply to everything.
b)
Chemical properties are only observable as the substance is changing. Physical properties are easily observed or measured.
c)
Chemical properties are easy to reverse, and physical properties cannot be reversed. 
38.
Name that physical property!
the ability of a substance to be hammered into thin sheets
a)
Thermal conductivity
b)
Ductility
c)
Solubility
d)
Malleability
39.
Name that physical property!
the ability of a substance to carry heat from one area to another
a)
Thermal conductivity
b)
Ductility
c)
Solubility
d)
Malleability
40.
Name that physical property!
The ability of a substance to be pulled into thin wires
a)
Thermal conductivity
b)
Ductility
c)
Solubility
d)
Malleability
41.
Which two particles make up the nucleus of an atom?
a)
Protons and Electrons
b)
Protons and Neutrons
c)
Molecules and Compounds
d)
Neutrons and Electrons
42.
In an atom, what is the number of protons equal to?
a)
The number of electrons.
b)
The number of neutrons.
c)
The number of molecules.
d)
The number of nuclei.
43.
An electron has this charge
a)
positive
b)
negative
c)
neutral
44.
A neutron has this charge
a)
negative
b)
positive
c)
neutral
45.
A proton has this charge
a)
negative
b)
positive
c)
neutral
46.
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 
c)
the number of electrons
d)
the number of neutrons
47.
Which element has 31 protons ?
a)
Gallium 
b)
Germanium
c)
Gadolinium
d)
Polonium
48.

Whose model suggested that negative particles were mixed in with positively charged material - like seeds in a watermelon?

a)

J.J. Thomson

b)

Ernest Rutherford

c)

Niels Bohr

d)

Albert Einstein

49.

Who discovered that the atom had an small, dense, positively charged center?

a)

Ernest Rutherford

b)

J.J Thomson

c)

Robert Millikan

d)

John Dalton

50.

Place the following atomic models in order, from earliest to latest:


A) Rutherford B) Thomson C) Dalton

a)

B, C, A

b)

C, A, B

c)

A, C, B

d)

C, B, A

51.

Who named the positive center of the atom the "nucleus?"

a)

Democritus

b)

Dalton

c)

Thomson

d)

Rutherford

52.

Which scientists believed an atom was indivisible? (Choose all correct responses.)

a)

Democritus

b)

Dalton

c)

Thomson

d)

Rutherford

53.

Which scientist believed that elements differed from one another because their atoms had different mass?

a)

Democritus

b)

Dalton

c)

Thomson

d)

Rutherford

54.

Who proposed that electrons move around the nucleus in circular orbits?

a)

Dalton

b)

Thomson

c)

Rutherford

d)

Bohr

55.

The order of elements in the periodic table is based on

a)

the number of protons in the nucleus.

b)

the electric charge of the nucleus.

c)

the number of neutrons in the nucleus.

d)

atomic mass.

56.

Which of the following elements is an alkali metal?

a)

calcium

b)

magnesium

c)

mercury

d)

sodium

57.

In Mendeleev's periodic table, elements in each column had similar

a)

atomic masses.

b)

properties.

c)

atomic numbers.

d)

symbols.

58.

How was Mendeleev's periodic table arranged?

a)

by increasing atomic mass

b)

by decreasing atomic mass

c)

by increasing atomic number

d)

by decreasing atomic number

59.

Each column of the periodic table is

a)

an element.

b)

a group.

c)

an isotope.

d)

a period.

60.

The three main groups of elements are metals, nonmetals, and

a)

inert gases.

b)

alkali metals.

c)

radioactive isotopes.

d)

semiconductors/metalloids.

61.

Most elements are

a)

metals.

b)

nonmetals.

c)

metalloids.

d)

semiconductors.

62.

Elements in an elemental family have similar

a)

atomic symbols.

b)

atomic sizes.

c)

atomic weights.

d)

chemical properties.

63.

The order of elements in the modern periodic table is based on an element's

a)

atomic number.

b)

name.

c)

chemical symbol.

d)

atomic mass.

64.

Which statement about the alkali metals is correct?

a)

They are located in the left-most column of the periodic table.

b)

They are extremely nonreactive.

c)

They are usually gases.

d)

They form negative ions with a 1- charge.

65.

Metals tend to be

a)

gases.

b)

dull.

c)

brittle.

d)

good conductors.

66.

Which group is very stable due to the fact that they have a full outermost energy level?

a)

alkali metals

b)

halogens

c)

alkaline-earth metals

d)

noble gases

67.

Which of the following is a property of group 18 elements?

a)

malleable

b)

brittleness

c)

high electrical conductivity

d)

unlikely to react with other elements

68.

Based on its location on the periodic table, which of these elements most likely has physical and chemical properties most similar to boron (B)?

a)

magnesium (Mg)

b)

aluminum (Al)

c)

neon (Ne)

d)

chlorine (Cl)

69.

Which of the following groups on the Periodic Table is likely to form positively charged ions (or cations)?

a)

group 1

b)

group 13

c)

group 17

d)

group 18

70.

Which of the following elements would most likely be a shiny, gray-colored solid at room temperature, conduct electricity, and dent when hit with a hammer?

a)

argon (Ar)

b)

chlorine (Cl)

c)

sulfur (S)

d)

aluminum (Al)

71.

Alkali metals are extremely reactive because they

a)

have every small atomic masses.

b)

are not solid at room temperature.

c)

have one valence electron that is easily removed to form a positive ion.

d)

have two valence electrons that form compounds with calcium and magnesium.

72.
How many protons are in Cadmium?
a)
112.411
b)
170
c)
64
d)
48
73.
How many neutrons does Argon have in it's nucleus?
a)
39.948
b)
58
c)
22
d)
18
74.
Lithium is located in Group 1 of the Periodic Table, which element has similar characteristics of Lithium?
a)
Cesium (Cs)
b)
Beryllium (Be)
c)
Neon (Ne)
d)
Magnesium (Mg)
75.
Arsenic is located in Group 15 of the Periodic Table.  How many valence electrons does the arsenic atom have?
a)
33
b)
5
c)
15
d)
75
76.
Which element has 6 protons?
a)
N
b)
C
c)
O
d)
B
77.

Changing the number of protons in an atom will change the atom's _____

a)

color

b)

atomic weight/mass

c)

net charge

d)

identity (name of element)

78.
Calculate the atomic weight/mass of an atom with:
11 protons
10 neutrons
11 electrons
a)
11
b)
21
c)
22
d)
10
79.
Calculate the atomic number of an atom with :
2 protons
3 neutrons
4 electrons
a)
2
b)
3
c)
4
d)
5
80.

What is one difference between aluminum (Group 13) and magnesium's (Group 2) structure?

a)

Aluminum has more protons and fewer neutrons than magnesium.

b)

Magnesium has one more proton than aluminum.

c)

Magnesium's atomic mass is larger than aluminum's atomic mass.

d)

Magnesium has one less proton than aluminum.

81.
Which has the greater EN: 
Cl or Al?
a)
Cl
b)
Al
82.
Which has the greater EN: 
N or C?
a)
C
b)
N
83.
Which has the greater EN: 
H or F?
a)
H
b)
F
84.
Which of the following will have a larger radius than Zinc?
a)
Gallium
b)
Aluminum
c)
Magnesium
d)
Strontium
85.
Which of the following will have a higher electronegativity than arsenic (As)?
a)
Carbon (C)
b)
Neon (Ne)
c)
Antimony (Sb)
d)
Germanium (Ge)
86.
Which of the following will have a lower ionization energy than Scandium (Sc)?
a)
Helium (He)
b)
Titanium (Ti)
c)
Calcium (Ca)
d)
Magnesium (Mg)
87.
As atoms of elements in group 16 are considered in order from top to bottom, the electronegativity of each successive element....
a)
decreases
b)
increases
c)
remains the same
d)
none of the above
88.
Which atom has the largest atomic radius?
a)
potassium
b)
rubidium 
c)
francium
d)
cesium
89.
As you move down the periodic table atoms get bigger.  This is because ____________.
a)
The atoms have more mass.
b)
The atoms have more protons.
c)
The atoms have more energy levels
d)
The atoms have more nuetrons
90.
As you move across the periodic table atoms tend to get smaller because, ______________.
a)
the atoms have more mass.
b)
the atoms have less mass
c)
the atoms have more protons.
d)
the atoms have less electrons.
91.
Atoms that have a high electronegativity, _______________.
a)
give up their electrons more easily.
b)
hold on to their electrons more tightly.
c)
have more electron shells.
92.
Electronegativity is...
a)
how good an atom is at attracting electrons
b)
the ability of an atom to lose electrons
c)
the energy required to remove an electron from a specific atom
d)
how easy it is to make friends. 
93.
Ionization energy is...
a)
the energy required to add an electron to a specific atom
b)
how much energy it takes to remove an electron from an atom
c)
the energy required to shield the outer electrons from the nucleus
d)
a measure of the ability of an atom to attract electrons
94.
The atom with the largest atomic radius in Group 18 is - 
a)
Ar
b)
He
c)
Kr
d)
Rn
95.
Which statement correctly and completely identifies a trend?
a)
Atomic radius decreases across a period and increases down a group.
b)
Electronegativity decreases across a period and decreases down a group.
c)
Ionization energy increases across a period and increases down a group.
d)
Ionic radius increases across a period and increases down a group.
96.
The element with the largest electronegativity in the halogens is - 
a)
At
b)
F
c)
Cl
d)
Br
97.

The element with the lowest electronegativity in Period 3 is -

a)

Na

b)

Cl

c)

Ar

d)

Mg

98.
Which periodic group has the smallest atomic radius?
a)
Alkali metals
b)
Halogens
c)
Noble Gases
d)
Transition metals
99.
Atomic radius generally increases as we move __________.  
a)
down a group and from right to left across a period 
b)
up a group and from left to right across a period 
c)
down a group and from left to right across a period 
d)
up a group and from right to left across a period 
100.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
101.
What atom matches this electron configuration?
1s22s22p63s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
102.

How many electrons can a p orbital hold?

a)

6

b)

10

c)

8

d)

14

103.

Each orbital can hold how many electrons?

a)

5

b)

4

c)

8

d)

2

104.
Which element is pictured?
a)
neon
b)
fluorine
c)
magnesium
d)
argon
105.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1

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