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Atomic Structure

Total questions: 65

Worksheet time: 40mins

Name
Class
Date
1.

Subatomic particles with a negative charge

a)

Electrons

b)

Neutrons

c)

Protons

d)

Quarks

2.
Subatomic particles with a positive charge
a)
neutrons
b)
atomic mass
c)
protons
d)
isotopes
3.
Measure mainly of the nuclear particles: protons + neutrons
a)
Subatomic Particles
b)
Atomic Number
c)
Atomic Mass
d)
Gluons
4.
Value representing the number of protons in an element
a)
Atomic Mass
b)
Mass Number
c)
Valence Electrons
d)
Atomic Number
5.
Subatomic particles that are neutral in charge
a)
Neutrons
b)
Protons
c)
Nucleus 
d)
Electrons
6.
The smallest particle of an element that shows all the properties of that element.
a)
Subatomic Particles
b)
Atom
c)
Quarks
d)
Gluons
7.
Where electrons are likely to be found as they travel around the nucleus
a)
Nucleus
b)
Electron Cloud
c)
Within a Proton
d)
Within a Neutron
8.
A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass
a)
Electron Shells
b)
Orbitals
c)
Electron Cloud
d)
Nucleus
9.
Arrangement of elements organized by atomic number
a)
Electron Cloud 
b)
Periodic Table 
c)
Electron Configuration
d)
None of these
10.
Discovered the nucleus of the atom through the Gold Foil Experiment
a)
Rutherford
b)
Chadwick
c)
Thomson
d)
Dalton
11.
Proposed the Modern Electron Cloud Model of the atom
a)
Schrodinger & Heisenberg
b)
Dalton
c)
Chadwick
d)
Rutherford
12.
Discovered the electron within the atom
a)
Thomson
b)
Chadwick 
c)
Schrodinger & Heisenberg
d)
Dalton
13.
Created the Planetary Model of the atom
a)
Bohr
b)
Dalton
c)
Rutherford
d)
Chadwick
14.
Believed that atoms of the same element are identical to each other
a)
Bohr
b)
Rutherford
c)
Dalton
d)
Thomson
15.
Calculation used to find the number of neutrons in an atom
a)
Atomic Mass - Atomic Number
b)
Atomic Number - Atomic Mass
c)
Atomic Mass - Electrons
d)
none of these
16.
The only element with no neutrons in its nucleus.
a)
Oxygen
b)
Helium 
c)
Hydrogen
d)
Lithium
17.
Referring to the table, what is the relative mass of a proton?
a)
10
b)
1
c)
0.1
d)
0.01
18.
Referring to the table, what is the relative mass of an electron?
a)
5
b)
1
c)
0.5
d)
0.0005
19.
Referring to the table, what is the relative charge of an electron?
a)
+1
b)
0
c)
-1
d)
-0.5
20.
Referring to the table, what is the relative charge of a neutron?
a)
+1
b)
0
c)
-1
d)
-0.5
21.
Referring to the table, what is the relative charge of a proton?
a)
+1
b)
0
c)
-1
d)
-0.5
22.
If an atom contains exactly three protons, then it's an atom of _____
a)
lithium
b)
gold
c)
nitrogen
d)
carbon
23.
For an atom to be electrically neutral, it must contain the same number of _____
a)
protons and neutrons
b)
neutrons and electrons
c)
protons and electrons
d)
nucleons and electrons
24.
The sum of the number of protons and the number of neutrons is called the _____
a)
atomic number
b)
mass number
c)
isotope number
d)
average weight
25.
The middle of the atom, which contains protons and neutrons, is called _____
a)
the shell
b)
the nucleus
c)
the cell
d)
the control center
26.
The nucleus contains _____
a)
only protons
b)
protons and neutrons
c)
protons and electrons
d)
electrons and neutrons
27.
In the Bohr model of the atom, electrons can only be in certain _____
a)
shells
b)
nuclei
c)
frames
d)
circles
28.
In the Bohr model of the atom, what is the maximum number of electrons in the second shell?
a)
2
b)
6
c)
8
d)
18
29.
How many Protons+Neutrons are in one atom of Lithium?
a)
6.941
b)
7
c)
3
d)
6
30.
How many Neutrons are in one atom of Lithium?
a)
6.941
b)
7
c)
3
d)
4
31.
How many Electrons are in one atom of Lithium?
a)
3
b)
6
c)
7
d)
6.941
32.

The smallest particle of an element.

a)

Element

b)

Molecule

c)

Atom

33.

What is one way Neutrons are different from electrons?

a)

they both are negative

b)

neutrons have no charge, while electrons have a negative charge

c)

Both are in the nucleus( center of atom)

d)

Electrons are inside nucleus and neutrons are outside the nucleus.

34.
True or False - Protons and Neutrons have about the same mass.
a)
True - They have about the same mass
b)
False - They do not have about the same mass
35.
Where are the Electrons found in the structure of an atom?
a)
In the nucleus
b)
In spaces around the nucleus
36.
How can we see atoms?
a)
With our eyes
b)
With a telescope
c)
With a microscope
37.
In this picture, the Electrons are found in which color?
a)
Blue
b)
Red
c)
Green
38.
How many neutrons does this atom have?
a)
4
b)
5
c)
6
d)
7
39.

What is the electronic structure of Sodium?

a)

11

b)

2.8.1

c)

2.8.8

d)

2.8.2

40.

What is the electronic configuration of Oxygen?

a)

2.8.8

b)

2.8.6

c)

2.6

d)

2.8.2

41.

How many electrons can the third shell hold?

a)

2

b)

8

c)

18

d)

6

42.

How many electrons does Chlorine have in it's outer shell?

a)

3

b)

5

c)

7

d)

9

43.

The number of electrons is the same as the number of protons.

a)

True

b)

False

44.

What is the electron configuration of Aluminium?

a)

2.2

b)

3

c)

2.8.3

d)

2.3

45.

How many electrons does Boron have in total?

a)

3

b)

4

c)

5

d)

6

46.

What is the charge on an atom?

a)

Positive

b)

Negative

c)

Neutral

47.

What is the electronic configuration of Nitrogen?

a)

2.5

b)

2.2.5

c)

2.8.5

d)

5

48.
Name group 1 on the periodic table.
a)
alkali metals
b)
alkaline earth metals
c)
noble gases
noble gases
d)
halogens
49.
Name groups 3 - 12 on the periodic table.
a)
noble gases
b)
halogens
c)
metalloids
d)
transition metals
50.

period

a)

Elements that occur in vertical columns on the periodic table.

b)

A horizontal row of elements in the periodic table

c)

Found in group two of the periodic table; highly reactive

d)

A subatomic particle that has a negative charge

51.

found in group one of the periodic table; highly reactive

a)

Non-metals

b)

Transition Metals (Groups 3-12)

c)

alkali metals (group 1)

d)

metalloids (semimetals)

52.
Elements which are shiny, conduct electricity and heat are called
a)
metal
b)
nonmetal
c)
metalloid
d)
nonexistent
53.
Which is a halogen?
a)
Helium
b)
Chlorine
c)
Oxygen
d)
Neptune
54.
Which is an alkali metal?
a)
Magnesium
b)
Iron
c)
Sodium
d)
Europium
55.
Each column in the periodic table is called a 
a)
period
b)
group
c)
cluster
d)
unit
56.

Who discovered the nucleus?

a)

Rutherford

b)

Bohr

c)

Thomson

d)

Dalton

57.

Who proposed a model with electrons moving in specific layers?

a)

Rutherford

b)

Bohr

c)

Thomson

d)

Dalton

58.

Who discovered the electrons?

a)

Rutherford

b)

Bohr

c)

Thomson

d)

Dalton

59.
The Modern Periodic Table of Elements is arranged by
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
60.

Which of the following elements is most likely to have similar properties to those of sodium (Na)?

a)

Magnesium (Mg)

b)

Sulfur (S)

c)

Francium (Fr)

d)

Titanium (Ti)

61.

Two elements that have similar physical and chemical properties are most likely in the same...

a)

period

b)

row

c)

group

62.

In which group would an element that is not reactive most likely be located?

a)

1

b)

2

c)

16

d)

18

63.

Which of the following elements is most likely a poor conductor of electricity?

a)

Beryllium (Be)

b)

Gold (Au)

c)

Phosphorus (P)

d)

Copper (Cu)

64.

What is the chemical symbol for Sodium?

a)

S

b)

So

c)

Na

d)

Ca

65.

Who arranged the periodic table of elements by the atomic mass (or mass number)?

a)

Democritus

b)

John Dalton

c)

Henry Moseley

d)

Dmitri Mendeleev

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