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Atoms and Electrons Test Review

Total questions: 46

Worksheet time: 30mins

Name
Class
Date
1.
What is the overall charge of the nucleus?
a)
positive
b)
negative
c)
neutral
2.
Where are electrons located?
a)
inside the nucleus
b)
outside the nucleus
3.

Atomic number equals the number of

a)

protons

b)

neutrons

c)

neutrons plus electrons

d)

protons plus neutrons

4.
Mass number is the number of
a)
electrons
b)
protons
c)
protons plus electrons
d)
protons plus neutrons
5.
How many protons does carbon have?
a)
6
b)
12
c)
7
d)
8
6.
What is fluorine's mass number?
a)
9
b)
18.998
c)
19
d)
10
7.
The overall charge of the atom is 
a)
positive
b)
negative
c)
neutral
8.
Isotopes are atoms of the same element with a different number of 
a)
protons
b)
neutrons
c)
electrons
9.
In the isotope notation Oxygen-17, the 17 is the 
a)
atomic number
b)
mass number
c)
number of neutrons
10.
How many neutrons does Hydrogen-3 have?
a)
0
b)
1
c)
2
11.
If an element has 5 protons, 5 electrons, and 6 neutrons, what is the mass?
a)
5
b)
6
c)
10
d)
11
12.

Which is the most common isotope of carbon?

a)

C-12

b)

C-13

c)

C-14

13.

What an electron reaches as it gains energy and just to a higher state:

a)
ground state
b)
excited state
14.
Which color has the lowest amount of energy?
a)
violet
b)
orange
c)
green
d)
red
15.
Electrons emit photons in the form of light/color when electrons jump
a)
to a higher energy level
b)
back to a lower energy level
16.

Do you remember what color sodium produced during flame testing??

a)

red

b)

orange

c)

violet

d)

blue

17.
Which orbital is shaped liked a sphere
a)
s
b)
p
c)
d
d)
f
18.
Which sublevel holds a max of 6 electrons?
a)
s
b)
p
c)
d
d)
f
19.
How do you know you are drawing an orbital diagram?
a)
boxes and arrows are drawn
b)
notation with superscripts is written
20.
1s22s1 
element?
a)
hydrogen
b)
helium
c)
sodium
d)
lithium
21.
[Kr] 5s2 4d10 5p3 
element?
a)
I
b)
Sn
c)
Sb
d)
Xe
22.
This person performed the Gold Foil Experiment to make his discovery
a)
Dalton
b)
Thomson
c)
Rutherford
d)
Bohr
23.
His model looks like a solid sphere, with nothing inside
a)
Dalton
b)
Thomson
c)
Rutherford
d)
Bohr
24.
Discovered the nucleus
a)
Dalton
b)
Thomson
c)
Rutherford
d)
Bohr
25.
Discovered electrons
a)
Dalton
b)
Thomson
c)
Rutherford
d)
Bohr
26.
This model states that you cannot predict the exact speed and location of an electron at any given time.
a)
Thomson
b)
Rutherford
c)
Bohr
d)
Electron Cloud
27.
This model shows electrons on fixed energy levels orbiting the nucleus at constant speeds and directions.
a)
Thomson
b)
Rutherford
c)
Bohr
d)
Electron Cloud
28.
What is the charge of a proton?
a)
positive
b)
negative 
c)
neutral
29.
What do you start electron configuration with?
a)
1s2
b)
1d10
c)
1f14
d)
1p6
30.
Which element is pictured?
a)
neon
b)
fluorine
c)
magnesium
d)
argon
31.

What is the noble gas shortcut electron configuration for Sulfur atom?

a)

[Ar] 3p4

b)

[He] 3s23p4

c)

[Ne] 3s23p4

d)

[Na] 3s23p3

32.
What is this element? 
[Ar] 4s2
a)
Calcium
b)
Sodium
c)
Scandium
d)
Titanium
33.
What is this element?
[Kr] 5s24d10
a)
Silver
b)
Cadmium
c)
Copper
d)
Zinc
34.
The order of filling orbitals is...
a)
1s, 2s, 2p, 3s, 3p, 3d, 4s, 4p
b)
1s, 2s, 2p, 3s, 3p, 3d, 4p, 3d
c)
1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p
d)
 4p, 4s, 3d, 3p, 3s, 2p, 2s, 1s

35.
What is this element?
1s22s22p63s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
36.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
37.
Which element is depicted from this orbital diagram
a)
Fluorine
b)
Neon
c)
Chlorine
d)
Argon
38.

Whose model?

a)

Dalton

b)

Thomson

c)

Rutherford

d)

Bohr

39.
What element is pictured?
a)
Hydorgen
b)
Boron
c)
Beryllium
d)
Arsenic
40.

Which element is this?

a)

Nickel

b)

Neon

c)

Sodium

d)

Nitrogen

41.

When drawing a Bohr model, how many electrons can the second energy level hold?

a)

2

b)

8

c)

4

d)

18

42.

When drawing a Bohr model, how many electrons can the first energy level hold?

a)

2

b)

8

c)

18

d)

32

43.

Which of the following colors represents the highest amount of energy?

a)

green light

b)

yellow light

c)

orange light

d)

blue light

44.

Do you remember what color potassium produced during flame testing??

a)

blue

b)

red

c)

light purple

d)

yellow

45.

He was the first person to provide scientific evidence for the existence of atoms.

a)

Dalton

b)

Thomson

c)

Rutherford

d)

Bohr

46.

Do you remember what color copper produced during flame testing??

a)

red

b)

orange

c)

yellow

d)

blue

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