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WorksheetsAtomic Structure
Total questions: 81
Worksheet time: 59mins
Name
Class
Date
1.
A positive particle is called what?
a)
Neutron
b)
Electron
c)
Proton
d)
Nucleus
2.
Where are positively charged particles located in an atom?
a)
Nowhere! They are free!
b)
In the atomic orbital or cloud
c)
In the nucleus
d)
What is a positively charged particle?
3.
Neutrons have a ____________ charge.
a)
postive
b)
negative
c)
neutral
d)
What is a charge?
4.
Where is the neutron located in an atom?
a)
In the atomic orbital or cloud
b)
In the nucleus
c)
Atoms don't have neutrons
5.
Atomic Mass = _____________ + ___________
a)
Pigs + Blankets
b)
Protons + Neutrons
c)
Protons + Electrons
d)
Neutrons + Electrons
6.
An electron has a __________ charge.
a)
Positive
b)
No charge
c)
Negative
7.
The number of _______ + _______ are equal in a neutral atom
a)
Stars + Fish
b)
Protons + Neutrons
c)
Protons + Electrons
d)
Neutrons + Electrons
8.
A(n) _______ is an atom with a charge.
a)
ion
b)
python
c)
lion
9.
Cations have a ______ charge
a)
Negative
b)
Neutral
c)
Positive
d)
They are free of charge!
10.
________ is an ion with a negative charge.
a)
Cation
b)
Anion
c)
Dogion
d)
Lion
11.
Look at the periodic table. Where are the metals located?
a)
To the left of the stair case
b)
To the right of the stair case
c)
Above the stair case
d)
There is no stair case
12.
Find the staircase. Good job. Now, where are the non-metals located?
a)
To the right of the staircase.
b)
To the left of the staircase.
c)
All non-metals are gases.
d)
I cannot find the staircase.
13.
What type of elements boarder the staircase?
a)
I still cannot find that staircase.
b)
Metals
c)
Non-metals
d)
Metalloids
14.
Magnesium (symbol Mg) is a ____________
a)
gas
b)
liquid
c)
non-metal
d)
metal
15.
Arsenic ( symbol As) is a _______________.
a)
solid
b)
metalloid
c)
gas
d)
metal
16.
Sulfur is _________.
a)
a metal
b)
a non-metal
c)
lost and cannot be found
d)
a metalloid
17.
What is the atomic number of Bismuth?
a)
208.9
b)
83
18.
Look at the picture!
It is a ___________ atom with a charge of ________?
It is a ___________ atom with a charge of ________?
a)
Helium, -1
b)
Helium, +1
c)
This isn't real.
d)
Not enough information.
19.
Look at the picture!
This is a ___________ atom with a charge of _______.
This is a ___________ atom with a charge of _______.
a)
Hydrogen, +1
b)
Helium, +1
c)
Helium, -1
d)
Helium, +2
20.
Look at the picture!
It is a ________ atom with a ______ charge.
It is a ________ atom with a ______ charge.
a)
Uranium, +2
b)
Helium, neutral
c)
Helium, +2
d)
Helium, -2
21.
On the periodic table, the atomic number is the same as...
a)
the number of electrons in an atom.
b)
the number of protons in an atom.
c)
the number of neutrons in an atom.
d)
nothing.
22.
The equation to find the number of neutrons is:
a)
neutrons = cations + sherpas
b)
neutrons = atomic mass - number of protons
c)
neutrons = PVA + Sodium Tetraborate
d)
neutrons do not exist!
23.
A(n) _______ is a pure substance made up of only one type of atom.
a)
element
b)
atom
c)
proton
d)
electron
24.
The total number of Protons and Neutrons.
a)
Mass Number
b)
Atomic Number
c)
Matter
d)
Ion
25.
Number of protons in an atom.
a)
Atomic Number
b)
Mass Number
c)
Isotope
d)
Valence electrons
26.
Electrons in the outermost orbital.
a)
Protons
b)
Neutrons
c)
Valence Electrons
d)
Isotopes
27.
Anything that has mass and takes up space
a)
isotope
b)
matter
c)
ion
d)
atomic number
28.
Atoms of the same element but with different numbers of neutrons.
a)
Ion
b)
Isotope
c)
Mass Number
d)
electron
29.
What element is represented in this Bohr Model?
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
30.
In order of most to least penetrating radiation we have
a)
Alpha , Beta, Gamma
b)
Beta , Gamma , Alpha
c)
Gamma, Beta, Alpha
d)
Gamma, Alpha, Beta
31.
What does alpha radiation emit?
a)
an electron
b)
a helium nucleus
c)
just energy
d)
none of the choices are correct
32.
Which statement is true about the charge of an electron and a proton?
a)
Electrons and protons are both positively charged
b)
Electrons are negative and protons are positive
c)
Electrons and protons are both negatively charged
d)
. Electrons are positive and protons are negative
33.
Which statement is true about the charge of an electron and a proton?
a)
Electrons and protons are both positively charged
b)
Electrons are negative and protons are positive
c)
Electrons and protons are both negatively charged
d)
. Electrons are positive and protons are negative
34.
Electrons are located
a)
inside the nucleus
b)
outside of the nucleus
c)
both inside and outside of the nucleus
35.
Which statement best describes the density of an atom’s nucleus?
a)
the nucleus occupies very little of the atom’s volume but contains most of its mass
b)
the nucleus occupies very little of the atom’s volume and contains little of its mass
c)
the nucleus occupies most of the atom’s volume but contains little of its mass
36.
We measure an Atoms mass in
a)
Grams (g)
b)
Kilograms (kg)
c)
Atomic Mass Units (AMUs)
d)
Atomic Number
37.
Elements with the same number of protons as electrons have a
a)
neutral charge
b)
positive charge
c)
negative charge
38.
Neutrons and protons have roughly equal masses. their mass is
a)
1/2000 AMU
b)
5 AMU
c)
1 AMU
39.
What is the mass number of an atom that has 6 protons, 6 electrons and 8 neutrons?
a)
12 AMU
b)
6 AMU
c)
2 AMU
d)
14 AMU
40.
The atomic number of an element tells us
a)
# of protons in an atom
b)
mass of the atom
c)
charge of the atom
d)
# of neutrons in an atom
41.
Elements can have the same Atomic Number.
a)
True
b)
False
42.
The atomic mass of an element can be found by adding the
a)
number of protons and number of electrons
b)
number of electrons and number of protons
c)
number of neutrons and number of electrons
d)
number of neutrons and number of prtons
43.
Which statement best describes an isotope of an element?
a)
same number of protons but different number of electrons
b)
same number of protons but different number of neutrons
c)
same number of neutrons but different number of electrons
d)
different number of protons and different numbers of neutrons
44.
When an element gives or takes electrons, it becomes charged and can be described as an
a)
isotope
b)
element
c)
ion
d)
valence
45.
An atom of an element that is positively charged is a
a)
cation
b)
anion
46.
An atom of an element that is negatively charged is a(n))
a)
anion
b)
cation
47.
Which statement correctly describes the charge of the nucleus and the charge of the electron cloud?
a)
The nucleus is both positive and negative while the electron cloud is just negative
b)
The nucleus is positively charged while the electron cloud is negative
c)
The nucleus negative while the electron cloud is positive
d)
The nucleus is positive and the electron cloud is positive
48.
What determines whether an atom will gain or lose electrons?
a)
valence electrons
b)
mass of the atom
c)
atomic number
49.
How many neutrons does Oxygen-18 have?
a)
8
b)
12
c)
10
d)
9
50.
How many protons and electrons does an atom of Magnesium have?
a)
12
b)
24
c)
19
d)
16
51.
Which two elements have the same number of valence electrons?
a)
C and O
b)
Na and Mg
c)
Cl and F
d)
Ga and Ge
52.
Which element has an oxidation number of +2?
a)
Boron
b)
Magnesium
c)
Potassium
d)
Chlorine
53.
What is the oxidation number of Aluminum?
a)
+3
b)
-1
c)
+2
d)
stable
54.
What makes an atom stable/happy?
a)
equal number of protons and neutrons
b)
full outer shell of electrons
c)
more neutrons than protons
d)
even number of electrons
55.
Which particle has a positive charge?
a)
electron
b)
orbital
c)
proton
d)
neutron
56.
What are valence electrons?
a)
electrons on the first orbital always
b)
nucleus
c)
the outermost shell
d)
the number of electrons on the outermost orbital
57.
Which particles make up the nucleus of an atom?
a)
protons and neutrons
b)
electrons and protons
c)
electrons, protons, and neutrons
d)
electrons and neutrons
58.
What charge does the nucleus have and why?
a)
positive - the neutrons do not have a charge
b)
positive - the neutrons and protons are positively charged particles
c)
neutral - the neutral charge dominates the positive charge
d)
neutral - electrons cancel out the positive charge of the atom
59.
What is the mass number and name of an element with 8 protons and 8 neutrons?
a)
16 - Carbon
b)
16 - Oxygen
c)
24 - Oxygen
d)
8 - Neon
60.
An element with a mass number of 10 and an atomic number of 6 has how many protons?
a)
5
b)
8
c)
6
d)
10
61.
An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.
a)
20
b)
10
c)
5
d)
25
62.
Matter that cannot be broken down into a simpler substance – building blocks of life.
a)
neutron
b)
atom
c)
electron
d)
quarks
63.
An atom has 13 protons, 15 neutrons and ___ electrons what is its mass number?
a)
13
b)
26
c)
28
d)
15
64.
What is the difference between the atomic mass and the mass number?
a)
the atomic mass is always a whole number
b)
the atomic mass equals the atomic #
c)
mass number is the rounded atomic mass - always a whole number
d)
electrons
65.
If Aluminum loses 3 electrons, what will its charge be?
a)
Neutral
b)
-3
c)
+3
d)
+8
66.
How many protons, electrons and neutrons does an neutral atom of Calcium have? Its atomic number is 20 and the mass number is 40.
a)
20 protons, 18 electrons and 40 neutrons
b)
20 protons, 20 electrons and 20 neutrons
c)
40 protons, 40 electrons and 20 neutrons
d)
20 protons, 18 electrons and 20 neutrons
67.
What does the number 37 represent in Chlorine-37?
a)
Atomic number
b)
Mass number
c)
Number of protons
d)
Number of neutrons
68.
This type of bond forms between a metal and nonmetal
a)
Covalent
b)
Ionic
c)
Hydrogen
d)
Metallic
69.
Type of bond in which electrons are transferred
a)
Hydrogen
b)
Ionic
c)
Covalent
d)
Metallic
70.
Occurs between two atoms of the same or different NONMETAL
a)
Ionic
b)
Covalent
c)
Hydrogen
d)
Metallic
71.
How many electrons are in an atom that has an atomic number of 34, an atomic mass of 74 and a charge of -2?
a)
34
b)
36
c)
2
d)
40
72.
How many protons are in this element?
a)
79
b)
196
c)
117
d)
Cannot be determined
73.
What particle provided the positive charge for an atom?
a)
proton
b)
neutron
c)
electron
d)
nucleus
74.
An atom with an unequal number of protons and electrons is said to have (a) ___.
a)
no charge
b)
balance
c)
charge
d)
unbalance
75.
How many electrons would an atom of Krypton have?
a)
83.80
b)
36
c)
12
d)
none
76.
What element is represented in this Bohr Model?
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
77.
This type of reaction occurs when a heavy nucleus, such as U-235, splits into two or more parts. [KEY WORD: SPLIT]
a)
Fission
b)
Fusion
c)
Chain reaction
d)
synthesis
78.
Which particle does not contribute mass to the atom?
a)
Proton
b)
Neutron
c)
Electron
d)
Nucleus
79.
GOLD
a)
Al
b)
Ag
c)
Ar
d)
Au
80.
CHLORINE
a)
C
b)
Ca
c)
Cl
d)
Cu
81.
CALCIUM
a)
C
b)
Ca
c)
Cu
d)
Cl
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