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HW 1.5 Atomic Structure

Total questions: 69

Worksheet time: 54mins

Name
Class
Date
1.

Subatomic particles with a negative charge

a)

Electrons

b)

Neutrons

c)

Protons

d)

Quarks

2.
Subatomic particles that are neutral in charge
a)
Neutrons
b)
Protons
c)
Nucleus 
d)
Electrons
3.
Subatomic particles with a positive charge
a)
neutrons
b)
atomic mass
c)
protons
d)
isotopes
4.
The nucleus of an atom is made of
a)
electrons and protons
b)
electrons and neutrons
c)
protons and neutrons
d)
empty space
5.
The mass of this particle is so small that it is not counted.
a)
proton
b)
electron
c)
neutron
d)
quark
6.
The term "neutral" means
a)
having only a little bit of charge
b)
having a positive charge
c)
having a negative charge
d)
having no charge at all
7.
Where is the nucleus located in an atom?
a)
Near the electron shells/levels
b)
Near the center of an atom
8.
Where are the Electrons found in the structure of an atom?
a)
In the nucleus
b)
In spaces around the nucleus
9.
The subatomic particles in green are...
a)
Protons
b)
Neutrons
c)
Electrons
10.
In this picture, the Electrons are found in which color?
a)
Blue
b)
Red
c)
Green
11.

The Atomic number is known as the _______

a)

Number of electrons in an atom

b)

Number of Protons in an atom

c)

Number of neutrons in an atom

d)

Number of Protons and electrons in an atom

12.

What charge do protons have?

a)

Positive

b)

Negative

c)

Neutral

13.

An atom is said to be neutral if it has same number of electrons and...…..

a)

electrons

b)

protons

c)

neutrons

d)

ions

14.

A particles inside the nucleus and have a neutral charge.

a)

protons

b)

electrons

c)

neutrons

d)

ions

15.
The central region of an atom where neutrons and protons are located is the __________________.
a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
16.

Used the word "atomos" to decsribe the uncuttable (indivisible) atom.

a)

Democritus

b)

Thomson

c)

Bohr

d)

Dalton

17.
What number indicates the nucleus?
a)
1
b)
2
c)
3
d)
4
18.
How many electrons does this picture show?
a)
4
b)
5
c)
6
d)
3
19.
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
20.

Which part of an atom is used to identify it?

a)

number of protons

b)

number of neutrons

c)

number of electrons

21.

Match the element with their symbol

a)

Hydrogen

1.

H

b)

Carbon

2.

C

c)

Magnesium

3.

Mg

d)

Iron

4.

Fe

e)

Fluorine

5.

F

22.

N

a)

Sodium

b)

Neon

c)

Nitrogen

d)

Gold

23.

O

a)

Oxygen

b)

Fluorine

c)

Osmium

d)

Gold

24.

Na

a)

Sodium

b)

Table salt

c)

Nitrogen

d)

Neon

25.

Al

a)

Aluminum

b)

Gold

c)

Iron

d)

Silver

26.

S

a)

silver

b)

Sulfur

c)

Gold

d)

Arsenic

27.

What does the atomic number tell us? (select all correct answers)

a)

the number of protons

b)

the number of protons and electrons

c)

the number of protons and neutrons

d)

the number of neutrons

28.

What does the mass number tell us?
(a)  

Choose from the below words
the number of protons and neutrons
the number of protons
the number of neutrons
the number of protons and electrons
29.
What is the atomic number of this atom?
30.

What is the mass number of this atom?

a)

1

b)

3

c)

4

d)

7

31.

Atoms of the same element which have a different number of neutrons are called .


(a)  
Choose from the below words
isotopes
ions
quarks
molecules
32.

How many electrons are in an neutral atom with an atomic number of 50?

33.
which atom has  4 neutrons?
a)
Li-6
b)
Li-7
c)
Li-8
d)
they have the same # of neutrons
34.
What is the atomic number of this nucleus?
a)
1
b)
3
c)
4
d)
7
35.
What is the atomic number of this atom?
a)
9
b)
10
c)
19
d)
27
36.
This particle determines what element you have - the elements identity.
a)
electron
b)
proton
c)
neutron
d)
valence shell
37.
Question Image

Match the following

a)

A

1.

Proton

b)

B

2.

Neutron

c)

C

3.

Electron

d)

D

4.

Shell

e)

E

5.

Nucleus

38.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
39.
Oxygen has 8 protons. What is oxygen's atomic number?
a)
16
b)
8
c)
15.999
d)
0
40.
How many protons are in this element?
a)
79
b)
196
c)
117
d)
Cannot be determined
41.

Subatomic particles with a negative charge

a)

Electrons

b)

Neutrons

c)

Protons

d)

Quarks

42.

How many electrons?

a)

2

b)

4

c)

6

d)

8

43.

What is atomic number?

a)

4

b)

Be

c)

Beryllium

d)

9.0122

44.

How many protons?

a)

3

b)

4

c)

6

d)

10

45.

Which are of the following are subatomic particles. Select three:

a)

Protons

b)

Neutrons

c)

Electrons

d)

Nucleus

46.

Potassium (K) has a mass of 39 and 19 protons, how many neutrons does it have?

a)

39

b)

19

c)

20

d)

58

47.

T/F Protons and Neutrons are contained in the nucleus

(a)  

48.

What is the number of electrons for an atom with 45 protons

a)

5

b)

45

c)

40

d)

25

49.

Name 2 subatomic particles found inside the nucleus?

a)

Protons and Neutrons

b)

Protons and Electrons

c)

Neutrons and Electrons

d)

Atoms and Molecules

50.

The Atomic number is known as the _______

a)

Number of electrons in an atom

b)

Number of Protons in an atom

c)

Number of neutrons in an atom

d)

Number of Protons and electrons in an atom

51.

What is the Atomic Number of this Element

a)

7

b)

3

c)

4

d)

1

52.

What is the number of protons in Magnesium atom ?

a)

12

b)

24

c)

23

d)

8

53.

How many Neutrons are present in the Sodium atom ?

a)

12

b)

11

c)

0

d)

23

54.
What is the mass number defined as?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
55.

What is the atomic mass of this atom?

a)

1

b)

3

c)

4

d)

7

56.
How many electrons are in an atom with an atomic number of 50?
a)
5
b)
8
c)
50
d)
2
57.
What is the mass number of this atom?
a)
1
b)
2
c)
3
d)
4
58.
An element with a mass number of 11 and an atomic number of 5 has how many neutrons?
a)
11
b)
5
c)
6
d)
16
59.
A phosphorus atom has 15 protons and 16 neutrons. What is the mass number?
a)
15
b)
16
c)
31
d)
1
60.
Which particles are NOT included in the mass number?
a)
Protons
b)
Protons and Neutrons
c)
Electrons
d)
Neutrons
61.
The nucleus is ____________ charged whereas the electron cloud is ____________ charged. 
a)
negatively, positively
b)
negatively, negatively
c)
positively, positively
d)
positively, negatively
62.
The  mass of an atom is located  in the ___________ and the volume of an atom is made of the ____________
a)
electron cloud, nucleus
b)
electron cloud, energy levels
c)
nucleus, electron cloud
d)
nucleus, neutrons
63.

Is salt (NaCI) a compound or an element?

a)

Compound

b)

element

64.

A substance that contains only one type of atom is a(n)

a)

compound

b)

element

c)

heterogeneous mixture

d)

homogeneous mixture

65.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds
66.

What state of matter does the picture below represent?

a)

solid

b)

liquid

c)

gas

d)

plasma

67.

The diagram shows arrangement of particles in a

a)

Solid

b)

Liquid

c)

Gas

68.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
69.
The ____________ of the substance is increasing between points A and B. 
a)
Time
b)
Temperature
c)
Size

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