Worksheets2nd Semester Exam Review Part 1 (3rd Period)
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
How many chloride ions are needed to cancel the 2+ charge of magnesium in magnesium chloride (MgCl2)?
a)
1
b)
2
c)
3
d)
4
2.
Data plotted on a graph results in a line that slopes upward from left to right. This graph tells you that
a)
when one variable increases, the other variable decreases.
b)
both variables are decreasing.
c)
when one variable increases, the other variable remains the same.
d)
when one variable increases, the other variable increases.
3.
The density of a block of wood with a volume of 50 cubic centimeters and a mass of 100 grams is
a)
0.5 g/cm3.
b)
5,000 g/cm3
c)
500 g/cm3.
d)
2 g/cm3.
4.
How would you calculate the density of an object?
a)
Divide its weight by its volume.
b)
Divide its mass by its volume.
c)
Multiply its weight times its mass.
d)
Multiply its volume times its mass.
5.
The measurement of the amount of mass contained in a given volume is called
a)
kilogram
b)
weight.
c)
liter
d)
density
6.
Which of the following are transferred or shared when two atoms react chemically?
a)
Nucleons
b)
Neutrons
c)
Electrons
d)
Protons
7.
Looking at a model of the atom, particles located within the nucleus that are positively charged are called
a)
Electrons
b)
Neutrons
c)
Nucleons
d)
Protons
8.
Looking at a model of the atom, particles located within the nucleus that have no charge are called
a)
Electrons
b)
Nucleons
c)
Neutrons
d)
Protons
9.
Protons and neutrons together are known as
a)
Neutrons
b)
Atomic Mass
c)
Protons
d)
Electrons
10.
The number of protons in a neutral atom is equal to the number of
a)
isotopes
b)
electrons
c)
neutrons
d)
ions
11.
Cobalt (atomic number 27) is necessary for growth and is present in vitamin B12. The only naturally occurring isotope of the element cobalt has a mass number of 59. How many neutrons are in cobalt?
a)
59
b)
27
c)
86
d)
32
12.
Calcium (atomic number 40) is an element needed for the development of bones and teeth in humans. How many electrons does a neutral atom of calcium contain?
a)
20
b)
60
c)
40
d)
0
13.
In an atom, which force holds the protons and neutrons together in the nucleus?
a)
The electromagnetic force.
b)
The weak force.
c)
The strong force.
d)
The gravitational force.
14.
The overall charge on an electron is
a)
0
b)
+1
c)
-1
d)
+2
15.
The overall charge on a neutron is
a)
0
b)
+1
c)
+2
d)
-1
16.
The overall charge on a proton is
a)
-1
b)
0
c)
-2
d)
+1
17.
Which of the following would most likely experience repulsion?
a)
A neutron and a proton coming into contact with each other.
b)
Two electrons coming into contact with each other.
c)
A proton and an electron coming into contact with each other.
d)
Two neutrons coming into contact with each other.
18.
The overall charge on an atom with 2 electrons, 3 protons, and 3 neutrons is
a)
+1
b)
+2
c)
-1
d)
-2
19.
Which of the following contributes to the mass of the nucleus?
a)
Protons and electrons
b)
Neutrons and electrons
c)
Protons and cations
d)
Protons and neutrons
20.
An atom has equal numbers of protons, neutrons and electrons. Which particle has the least effect on its mass?
a)
Neutron
b)
Proton
c)
Electron
d)
Nucleon
100 %
