NEW
Font size
S
M
L
XL
WorksheetsElements & Compounds
Total questions: 40
Worksheet time: 22mins
Name
Class
Date
1.
The written abbreviation used to represent an element--
a)
chemical symbol
b)
chemical formula
c)
element symbol
d)
periodic table
2.
How many ELEMENTS are in ULaV?
a)
3
b)
4
c)
2
d)
5
3.
Is salt (NaCI) a compound or a element?
a)
Compound
b)
Element
4.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
5.
Which of the following is NOT a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
6.
The central region of an atom where its neutrons and protons are is called the--
a)
nucleus
b)
electron cloud
c)
core
d)
center
7.
I am anything that has mass and takes up space!
a)
energy
b)
matter
c)
molecules
d)
atoms
8.
I am the smallest unit of an element that still has all the element's basic properties.
a)
atom
b)
compound
c)
molecule
d)
mixture
9.
I am 2 or more elements chemically bonded.
a)
atom
b)
molecule
c)
compound
d)
mixture
10.
The Earth is composed of...
a)
every element on the Periodic Table
b)
a small, limited number of elements
11.
A pure substance
a)
compound
b)
element
c)
molecule
12.
What is this?
a)
element
b)
compound
c)
atom
d)
mixture
13.
How many different compounds?
a)
1
b)
3
c)
4
d)
5
14.
How many pure elements?
a)
1
b)
2
c)
7
d)
11
15.
Why is CU not copper?
a)
Two capital letters represent two elements
b)
Copper is Co
16.
How many ELEMENTS make up this compound?
Ca9H8O4
Ca9H8O4
a)
3
b)
21
c)
4
d)
22
17.
How many ATOMS make up this compound?
Ca9H8O4
Ca9H8O4
a)
3
b)
21
c)
4
d)
22
18.
How many ATOMS make up this compound?
Ca2Li5BO3
Ca2Li5BO3
a)
3
b)
4
c)
6
d)
11
19.
How many ELEMENTS make up this compound?
Ca2Li5BO3
Ca2Li5BO3
a)
3
b)
4
c)
6
d)
11
20.
Be
a)
Element
b)
Compound
21.
Be7
a)
Element
b)
Compound
22.
CO
a)
Element
b)
Compound
23.
a)
Element
b)
Compound
24.
Mg
a)
Element
b)
Compound
25.
Ni
a)
Element
b)
Compound
26.
Bottle of H2O
a)
Element
b)
Compound
27.
Balloon of He
a)
Element
b)
Compound
28.
Made of 1 type of atom
a)
Element
b)
Compound
29.
Made of more than 1 type of atom
a)
Element
b)
Compound
30.
Found on the Periodic Table
a)
Element
b)
Compound
31.
a)
Element
b)
Compound
32.
Number of atoms
a)
1
b)
2
c)
3
d)
8
33.
Number of elements
a)
1
b)
2
c)
3
d)
8
34.
Number of different compounds
a)
1
b)
2
c)
3
d)
8
35.
Number of molecules
a)
1
b)
2
c)
3
d)
8
36.
Which elements make up this molecule?
a)
Hydrogen, Oxygen
b)
H2O
37.
What is an element represented by?
a)
chemical symbol
b)
chemical formula
c)
element symbol
38.
What is a compound represented by?
a)
chemical symbol
b)
chemical formula
c)
element symbol
39.
Who is your science teacher?
a)
Mrs. R. Gonzales
b)
Mrs. I. Gonzalez
40.
What is this molecule's chemical formula?
a)
C4H
b)
CH4
c)
4CH
Reset
