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Worksheets

Elements

Total questions: 50

Worksheet time: 1hrs 9mins

Name
Class
Date
1.
Which of the following is the lightest element?
a)
Lithium
b)
Oxygen
c)
Boron
d)
Fluorine
2.
Which of the following elements is a halogen?
a)
Carbon
b)
Calcium
c)
Oxygen
d)
Bromine
3.
What is the atomic symbol for potassium?
a)
K
b)
Kr
c)
Ki
d)
Ka
4.
Which of the following elements is a noble gas?
a)
Oxygen
b)
Helium
c)
Carbon
d)
Iron
5.
The atomic symbol for silver is?
a)
Sr
b)
Si
c)
Ag
d)
As
6.
Which of the following elements is found in the human body?
a)
Boron
b)
Sodium
c)
Lead
d)
Chlorine
7.
Which of the following elements is used to make car batteries?
a)
Oxygen
b)
Lead
c)
Potassium
d)
Magnesium
8.
Which of the following elements is the most common element in the Earth's atmosphere?
a)
Carbon
b)
Oxygen
c)
Nitrogen
d)
Hydrogen
9.
Which of the following elements is used to make fertilizer?
a)
Lead
b)
Potassium
c)
Oxygen
d)
Uranium
10.
What is the atomic symbol for iron?
a)
Ir
b)
Fe
c)
Fo
d)
Fr
11.

Maximum covalency of nitrogen is

a)

6

b)

8

c)

9

d)

4

12.

In group 15 elements as we move down the group

a)

Non metallic character increase

b)

Metallic character increase

c)

Both

d)

None the above

13.

Nitrogen and phosphorus are

a)

Non metals

b)

Metals

c)

Metalloids

d)

None of the above

14.

Bismuth is a

a)

Metalloids

b)

Non metal

c)

Metal

d)

None of the above

15.
What is made up two or more elements that are chemically combined?
a)
Element
b)
Mixture
c)
Compound
d)
Solids
16.

Carbon (C) is considered an element while Carbon Dioxide (CO2) is considered a compound. That is because Carbon Dioxide is -

a)

a gas

b)

made of two elements

c)

given off by plants

d)

useful to us

17.
Element or Compound?
Au
a)
Element
b)
Compound
18.
What cannot be broken down into other substances?
a)
Compound
b)
Mixture
c)
Solids
d)
Element
19.

What is the difference between CO and Co?

a)

They are the same.

b)

CO is an element and Co is a compound.

c)

CO is a compound and Co is an element.

20.
Examples are milk and gasoline.
a)
elements
b)
mixtures
c)
compounds
21.

Salt (NaCl)

a)

Compound

b)

Element

c)

Mixture

22.
How many elements are in the Noble Gas family?
a)
4
b)
5
c)
6
d)
7
23.

Lucky Charms Cereal

a)

Compound

b)

Element

c)

Mixture

24.

Koolaid

a)

Compound

b)

Element

c)

Mixture

25.

Pure substances listed on the periodic table that cannot be broken down into any other substances by chemical or physical means

a)

Elements

b)

Compounds

c)

Molecules

d)

Mixtures

26.
Of these mixtures, which one is a solution?
a)
A
b)
B
c)
C
d)
D
27.
Element or Compound?
Salt (NaCl)
a)
Element
b)
Compound
28.

All of the following are elements EXCEPT:

a)

carbon

b)

nitrogen

c)

oxygen

d)

water

29.
Element or Compound?
H2SO4
a)
Element
b)
Compound
30.

Mg

a)

Compound

b)

Element

c)

Mixture

31.

In group 15 elements as we move down the group

a)

Non metallic character increase

b)

Metallic character increase

c)

Both

d)

None the above

32.

P-block elements are those elements in which last electron enters in

a)

P ortibal

b)

S orbital

c)

d orbital

d)

None of the above

33.

Maximum covalency of nitrogen is

a)

6

b)

8

c)

9

d)

4

34.

Nitrogen and phosphorus are

a)

Non metals

b)

Metals

c)

Metalloids

d)

None of the above

35.
Element or Compound?
Au
a)
Element
b)
Compound
36.

Which of the following is not a compound?

a)

H2O

b)

C8H18

c)

NaCl

d)

Br

37.

Is this an example of an element or compound?

a)

element

b)

compound

38.

Lucky Charms Cereal

a)

Compound

b)

Element

c)

Mixture

39.
Italian Salad Dressing is a . . .
a)
heterogeneous mixture
b)
homogeneous mixture
c)
Pure Substance
d)
Compound
40.
Element or Compound?
Oxygen
a)
Element
b)
Compound
41.

Carbon (C) is considered an element while Carbon Dioxide (CO2) is considered a compound. That is because Carbon Dioxide is -

a)

a gas

b)

made of two elements

c)

given off by plants

d)

useful to us

42.
How many elements are in the Noble Gas family?
a)
4
b)
5
c)
6
d)
7
43.

Pure substances listed on the periodic table that cannot be broken down into any other substances by chemical or physical means

a)

Elements

b)

Compounds

c)

Molecules

d)

Mixtures

44.
Element or Compound?
H2SO4
a)
Element
b)
Compound
45.

Koolaid

a)

Compound

b)

Element

c)

Mixture

46.

What is the difference between CO and Co?

a)

They are the same.

b)

CO is an element and Co is a compound.

c)

CO is a compound and Co is an element.

47.
Of these mixtures, which one is a solution?
a)
A
b)
B
c)
C
d)
D
48.

Chocolate Chip Muffin

a)

Compound

b)

Element

c)

Mixture

49.
Element or Compound?
As
a)
Element
b)
Compound
50.
Element or Compound?
Salt (NaCl)
a)
Element
b)
Compound

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