WorksheetsChemistry R Final 23-24
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
What does the word "atom" mean?
a)
particle
b)
indivisible
c)
neutron
2.
When a glass breaks in the lab, you should...
a)
clean it up
b)
tell a teacher immediately
c)
ignore it and continue working
3.
A mixture that has constant composition throughout and is always in a single phase
a)
homogenous mixture
b)
heterogenous mixture
c)
diluted mixture
4.
The green particle represents what?
a)
proton
b)
neutron
c)
electron
5.
The red particle represents what?
a)
proton
b)
neutron
c)
electron
6.
The picture (Oxygen, O2) represents a/an...
a)
element
b)
compound
c)
neither
7.
Use the table below to answer the following:
Which element has an atomic number of 10?
a)
Beryllium
b)
Neon
c)
Boron
8.
The picture (glucose, C6H12O6) represents a/an...
a)
element
b)
compound
c)
neither
9.
If someone's article of clothing catches fire...
a)
you should scream
b)
another person should grab the fire blanket and wrap you in it
c)
you should run to the bathroom sink
10.
Fireworks are a...
a)
physical change
b)
chemical change
c)
neither
11.
In which part of the periodic table can the non-metals be found?
a)
1
b)
2
c)
3
d)
4
12.
Use the table below to answer the following:
Which element has 9 protons?
a)
Oxygen
b)
Flourine
c)
Boron
13.
What is this element's average atomic mass?
a)
7
b)
14.01
c)
5
14.
How many total electrons does this element have in it's neutral state?
a)
7
b)
14.01
c)
5
15.
What should you do after working with a chemical in the lab?
a)
wash your hands with soap and water
b)
treat your hands with skin lotion
c)
wipe your hands on a towel or apron
16.
What is this element's atomic number?
a)
7
b)
14.01
c)
5
17.
If this element had a charge of +2, how many total electrons would this element have?
a)
7
b)
14.01
c)
5
18.
Use the table below to answer the following:
Which element' has only 2 valence electrons?
a)
Helium
b)
Lithium
c)
Hydrogen
19.
Flammability is a...
a)
physical property
b)
chemical property
c)
neither
20.
If a substance gets in your eyes, you should...
a)
immediately use the eyewash station
b)
tell a lab partner
c)
wipe your eyes with your hands
100 %
