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Year 7 Science - Periodic Table

Total questions: 71

Worksheet time: 46mins

Name
Class
Date
1.
all matter is made of what 
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
2.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
3.
the central region of an atom where its neutrons and protons are is its 
a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
4.
an atom with atomic number 6 would have how many protons 
a)
6
b)
12
c)
3
d)
cannot be determined 
5.
Particles in an atom that are neutral and have no charge are 
a)
negatrons 
b)
electrons 
c)
neutrons 
d)
protons 
6.
True or False? Neutrons have a negative charge
a)
True
b)
False
7.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
8.
A particle that moves around the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
9.
What does the 1.00794 stand for?
a)
Hydrogen
b)
atomic number
c)
atomic mass
d)
atomic explosion
10.
What is the atomic mass of "F"
a)
9
b)
18
c)
17
d)
19
11.
The first energy level can hold up to how many electrons?
a)
8
b)
4
c)
2
d)
5
12.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
13.
The particles that are found in the nucleus of an atom are
a)
neutrons and electrons
b)
electrons only
c)
protons and neutrons
d)
protons and electrons
14.
How many neutron are in the atom "K"?
a)
7
b)
2
c)
39
d)
20
15.
What particle uniquely identifies an element?
a)
Number of Valence Electrons
b)
Number of Protons
c)
Number of Electrons
d)
Atomic Mass
16.
Which one of these is NOT located in the element square on the Periodic Table?
a)
Atomic Number
b)
Atomic Mass
c)
Room Temperature
d)
Chemical Symbol
17.
If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?
a)
10
b)
20
c)
30
18.
What is the atomic number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
19.
What is the mass number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
20.
Atoms are mostly filled with?
a)
electrons
b)
empty space
c)
protons
21.

What is the maximum number of electrons that can occupy the second energy level of an atom?

a)

2

b)

8

c)

18

d)

32

22.

Which subatomic particle is negatively charged?

a)

Proton

b)

Neutron

c)

Electron

d)

Quark

23.

What is the atomic number of an element?

a)

The number of protons in the nucleus

b)

The number of neutrons in the nucleus

c)

The total number of protons and neutrons in the nucleus

d)

The total number of protons and electrons in the atom

24.

What does the atomic mass of an element represent?

a)

The number of protons in the nucleus

b)

The number of electrons in the atom

c)

The total number of protons and neutrons in the nucleus

d)

The total mass of the electrons in the atom

25.

Which subatomic particle contributes most to the mass of an atom?

a)

Electron

b)

Proton

c)

Neutron

d)

Both B and C are correct

26.

How is the electron cloud around the nucleus best described?

a)

A dense pack of electrons

b)

A precise orbit in which electrons move

c)

A region where electrons are likely to be found

d)

Empty space with no electrons

27.

What is the significance of the atomic number in the periodic table?

a)

It determines the element's position in the periodic table

b)

It indicates the number of neutrons in the nucleus

c)

It represents the total mass of the atom

d)

It shows the number of electrons in a neutral atom

28.

What happens to an atom when it loses an electron?

a)

It becomes a neutron

b)

It becomes an isotope

c)

It becomes a positively charged ion

d)

It becomes a negatively charged ion

29.

The periodic table is mostly made up of what type of element?

a)

Metals

b)

Nonmetals

c)

Metalloids

30.

Vertical columns on the periodic table are called ___?

a)

groups

b)

periods

c)

rows

d)

families

31.

Elements that occur in vertical columns on the periodic table.

a)

Neutron

b)

metalloids (semimetals)

c)

groups

d)

Proton

32.

The first energy shell can hold ______ electrons.

a)

2

b)

8

c)

18

33.

Elements in the same group or column have the same ...

a)

# of valence electrons

b)

# of shells

c)

# of protons

d)

Mass Number

34.

Rows on the periodic table are called ___________.

a)

Periods

b)

Sentences

c)

Fences

35.

The columns in the periodic table are called ___________.

a)

Towers

b)

Herds

c)

Groups

36.
The number at the bottom of each square on the periodic table is the ...
a)
atomic number
b)
atomic mass
c)
chemical symbol
d)
element name
37.
The number at the top of each square on the periodic table is the ...
a)
atomic number
b)
atomic mass
c)
Chemical Symbol
d)
Element Name
38.
This class of elements are sometimes called "semiconductors."
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Groups
39.

What is the name of the element? (Use the Periodic table provided)

a)

sodium

b)

magnesium

c)

vanadium

40.

What is the name of the element? (Use the Periodic table provided)

a)

sodium

b)

magnesium

c)

vanadium

41.

Metals are found on the ____ side of a periodic table and nonmetals are found on the ___ side.

a)

left, right

b)

right, left

42.

Atomic number tells you _________.

a)

the number of protons in an atom

b)

the number of electrons in an atom

c)

the number of neutrons in an atom

d)

the atomic mass of an atom

43.

You can find the _____ an atom has by subtracting "atomic mass - number of protons".

a)

number of neutrons

b)

number of electrons

c)

atomic mass

d)

atomic number

44.

Why do atoms create bonds with other atoms?

a)

to get a full outer shell

b)

to make colorful compounds

c)

to find atoms with the same number of electrons

d)

because they are lonely

45.

When two or more different types of atoms bond, they create a _____ such as NaCl.

a)

compound

b)

concoction

c)

potion

d)

mixture

46.

What is the atomic number of Neon?

a)

10

b)

20.1797

c)

20

d)

2

47.

What is the atomic mass of neon?

a)

10

b)

20.1797

c)

2

d)

45.987

48.

The atomic number tells you the number of protons or _____ in a neutral atom of that element.

a)

electrons

b)

neutrons

c)

photons

d)

particles

49.

Atomic mass is the number of ______ + _______.

a)

protons, neutrons

b)

neutrons, electrons

c)

protons, electrons

50.

Calculate the number of NEUTRONS a boron atom would have.

a)

5

b)

10.811

c)

6

d)

11

51.

A boron atom would have ___ protons and ___ electrons.

a)

5, 5

b)

5, 6

c)

6, 11

d)

5, 10.811

52.

Atomic Mass

a)

A

b)

B

c)

C

d)

D

53.

Number of Protons

a)

A

b)

B

c)

C

d)

D

54.

Symbol

a)

A

b)

B

c)

C

d)

D

55.

What is significant about group 18 elements

a)

They are all metals

b)

They will combine with any element

c)

They have a full Valence electron shell

d)

They do not have Valence electrons

56.

What are the three main groups of the periodic table?

a)

groups

b)

metal

c)

nonmetals

d)

metalloids

e)

periods

57.

What are the vertical columns on the periodic called?

a)

groups

b)

periods

c)

nonmetals

d)

metals

e)

metalloids

58.

What do the vertical columns on the periodic table tell us?

a)

The number of orbitals

b)

The number of valence electrons (electrons on the outer most shell)

59.

What are the horizontal rows on the periodic table called?

a)

periods

b)

groups

c)

metals

d)

nonmetals

e)

metalloids

60.

How do you calculate the number of neutrons? *

a)

Mass = Atomic number - Neutrons

b)

Mass - Atomic number = Neutrons

c)

Atomic number = Neutrons

61.

What is the atomic mass?

a)

58.693

b)

28

62.

How many protons and electrons does nickel have?

a)

28

b)

58.69

63.

atomic number

a)

gas at room temperature, low boiling point

b)

a subatomic particle that has a negative charge

c)

number or protons and neutrons

d)

the number of protons in the nucleus of an atom

64.

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

65.
Which is an electron?
a)
A
b)
B
c)
C
66.

What is the electron configuration of sodium?

a)

2-8

b)

2-8-2

c)

2-8-1

d)

11

67.

What is the electron configuration of calcium?

a)

2-8-8-2

b)

2-8-10

c)

20

d)

2-18-2

68.

The electronic configuration of Cl is

a)

2,8,8,1

b)

2,8,6

c)

2,8,8

d)

2,8,7

69.

Which of the following is the electronic Configuration of Sodium

a)

2,8

b)

2,8,1

c)

2,1,8

d)

8,1,2

70.

Which if the following is the correct arrangement of electrons in different shells for an element with atomic number 17 ?

a)

2,8,7

b)

8,8,1

c)

2,8,1,6

d)

2,8,2,5

71.

An atom has atomic number 4 the number of electrons in its outermost orbit will be ?

a)

2

b)

6

c)

4

d)

1

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