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Atoms Quiz 1

Total questions: 37

Worksheet time: 43mins

Name
Class
Date
1.
How do you find out the number of protons in an atom?
a)
atomic number
b)
atomic mass
c)
charge
d)
atomic mass - atomic number
2.
How do you find out the number of neutrons in an atom?
a)
atomic number
b)
atomic mass
c)
charge
d)
atomic mass - atomic number
3.
The part of the atom that determines the identity of the atom is the ____________.
a)
proton
b)
nucleus
c)
electron
d)
neutron
4.
Which item on this element square represents the atomic number?
a)
13
b)
Al
c)
Aluminum
d)
26.981538
5.
How many neutrons are in the atom "K"?
a)
7
b)
19
c)
39
d)
20
6.
How many protons does an atom of Carbon have? 
a)
3
b)
12.011
c)
6
d)
none
7.
Which is an electron?
a)
A
b)
B
c)
C
8.

Using the picture from a periodic table, what is the Atomic Number?

a)

26

b)

Fe

c)

55.845

d)

56

9.

Calcium has the atomic number 20. If it has a mass number of 46, how many neutrons are present?

a)

46

b)

20

c)

26

d)

We cannot tell

10.

What is the mass number of bromine?

a)

35

b)

45

c)

80

d)

79.904

11.

What is the atomic number of this element?

a)

12

b)

24

c)

23

12.
An atom has an atomic number of 30 and a mass number of 65. How many neutrons are in the atom?
a)
30
b)
65
c)
35
d)
95
13.
What is the Atomic mass?
a)
Atomic Mass = A
b)
Atomic Mass = B
c)
Atomic Mass = C
d)
Atomic Mass = D
14.
What is true about a neutral atom?
a)
The number of protons equal the number of neutrons
b)
The number of protons equal the number of electrons
c)
The number of neutrons equal the number of electrons
d)
The number of protons, neutrons, and electrons are all different
15.

Match the scientist to their model.

a)

1.

Bohr

b)

2.

Rutherford

c)

3.

Schrodinger

d)

4.

JJ Thomson

16.

Match the scientist to their model.

a)

Electrons occupy only certain orbits. & Each orbit has an energy associated with it.

1.

Bohr

b)

Gold Foil Experiment & Evidence of the Nucleus

2.

Rutherford

c)

Cathode ray Experiment & The Plum Pudding Model

3.

J.J. Thomson

d)

Atoms of a given element are identical. & Atoms of different elements combine to form chemical compounds.

4.

Dalton

e)

Mechanical wave model also known as the Quantum Mechanical Model & Electron orbitals are nothing like orbits.

5.

Schrodinger

17.

Label the subatomic particle locations.

a)

protons

b)

neutrons

c)

electrons

1
2
3
1)
2)
3)
18.

What is the mass number of a nitrogen atom that has 8 neutrons?

a)

15

b)

14

c)

22

d)

8

19.

What is the mass number of a calcium atom that has 21 neutrons?

a)

20

b)

21

c)

41

d)

40

20.

How do you calculate mass number?

a)

Mass x percent

b)

Protons + Electrons

c)

Protons + Neutrons

d)

Neutrons + Protons + Electrons

21.

Please Label the Element Information from the Periodic Table of Elements.

a)

Chemical Name

b)

Chemical Symbol

c)

Atomic Mass

d)

Atomic Number

1
2
3
4
1)
2)
3)
4)
22.

Atoms are made up of ________________

a)

energy

b)

electrons

c)

subatomic particles

d)

gasses

23.
The positively charged particles of an atom are the ________.
a)
electrons
b)
protons
c)
neutrons
d)
protons & neutrons
24.

Who developed this early atomic theory?

All atomic structure was made up of atoms which he believed to be tiny, hard spheres.

a)

Bohr

b)

Dalton

c)

Rutherford

d)

J.J. Thomson

e)

Democritus

25.
If you want to know which atom an element is, then count the _____
a)
protons
b)
neutrons
c)
electrons
d)
nucleons
26.

How many electrons does silicon have?

a)

28

b)

14

c)

0

d)

10

27.

The atomic number is always the number of

a)

protons

b)

neutrons

c)

electrons

28.
 12. The table provides information on four different elements. Which element has six protons in its nucleus?
a)
A. Boron
b)
B. Carbon
c)
C. Nitrogen
d)
D. Oxygen
29.

The atomic number of magnesium is 12. The atomic mass is 24. How many protons does a magnesium atom have? [Type your answer]

(a)  

30.

For Fluorine, the atomic number is nine. The mass number is 19. How many neutrons in one atom of Fluorine?

a)

9

b)

7

c)

19

d)

10

31.

Determine the "Mass Number" for the following atom: Protons: 10; Neutrons: 12; Electrons: 10

(a)  

32.

The atomic number of magnesium is 12. The atomic mass is 24. How many protons does a magnesium atom have? [Type your answer]

(a)  

33.

Who developed this early atomic theory?

All atomic structure was made up of atoms which he believed to be tiny, hard spheres.

a)

Bohr

b)

Dalton

c)

Rutherford

d)

J.J. Thomson

e)

Democritus

34.

What did Erwin Schrodinger do to help with atomic theory?

a)

He developed the Electron Cloud Model.

b)

Made the Bohr Model.

c)

Discovered the Protons.

d)

None of the Above.

35.

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

36.

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

37.
What can you conclude from the fact that scientists continue to update the atomic model?
a)
New information about atoms continues to be discovered
b)
Old information about atoms is completely useless
c)
Scientists did not have any information about atoms until a few years ago
d)
Scientists still have no idea what atoms look like

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