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Chemistry Pre-Assessment Test

Total questions: 37

Worksheet time: 34mins

Name
Class
Date
1.

What aspect of the periodic table will tell you valence electrons?

a)

Groups

b)

Families

c)

Transitions

d)

Periods

2.

The symbol for Iron is

a)

Ir

b)

Fe

c)

I

d)

On

3.

What atom is the largest based on its location on the periodic table?

a)

H

b)

Ne

c)

As

d)

Fr

4.

What element is the most electronegative?

a)

H

b)

C

c)

Mg

d)

F

5.

All of the noble gasses do not bond because

a)

They are gasses

b)

They have 7 valence electrons

c)

They have their outer orbital filled

d)

They are ions.

6.

Iron can have more than one oxidation number. What are the two oxidation numbers Iron may have.

a)

+ 1, 2

b)

-2.-1

c)

2+, 1+

d)

0, 1+

7.

The element with a e-configuration of 1s2,2s2p6,3s1

a)

Calcium

b)

Potassium

c)

Sodium

d)

Argon

8.

Periods on the periodic table tell you.

a)

Valence Electrons

b)

Amount of Orbitals

c)

Electronegativity Only

d)

Size of the atom Only

9.

A ___________ is an arrangement of elements in columns

a)

columns

b)

rows

c)

periodic table

d)

electron shell

10.

The atomic number tells you what?

a)

number of electrons

b)

number of protons

c)

number of neutrons

d)

both electrons and protons in an atom.

11.
Which group of the periodic table is composed of inert (not reactive)  gases?
a)
alkali metals
b)
alkaline earth metals
c)
halogens
d)
noble gases
12.
Elements which are shiny, conduct electricity and heat are called
a)
metal
b)
nonmetal
c)
metalloid
d)
nonexistent
13.
Which element is not a metal?
a)
H
b)
Re
c)
Al
d)
B
14.
The atoms along the staircase are called 
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
15.
Which is a halogen?
a)
Helium
b)
Chlorine
c)
Oxygen
d)
Neptune
16.
Which is an alkali metal?
a)
Magnesium
b)
Iron
c)
Sodium
d)
Europium
17.
A horizontal row of elements in the periodic table.
a)
column
b)
group
c)
period
18.
A vertical column in the periodic table.  Elements share similar properties.
a)
row
b)
group
c)
period
19.
The simplest substance is..?
a)
Carbon
b)
An element
c)
Water
d)
A simple compound 
20.
A proton is....
a)
A negatively charged subatomic particle
b)
A positively charged subatomic particle
c)
A neutrally charged subatomic particle
d)
The only subatomic particle located in the nucleus
21.
A neutron has a charge of
a)
+2
b)
No charge
c)
-1
d)
+1
22.
Basic unit of matter - the smallest piece of matter known
a)
Element 
b)
Atom
c)
Molecule
d)
Compound
23.
Density is...
a)
the amount of mass in an object
b)
the amount of space an object takes up
c)
the amount of mass in a given space
d)
the weight of an object
24.
Negatively charged part of an atom located in levels outside the nucleus
a)
Proton
b)
Neutron
c)
Electron
d)
Neutron
25.
The density of water is 
a)
.1 g/cubic cm
b)
10g/cubic cm
c)
1.0 g/cubic cm
d)
0 g/cubic cm
26.
Burning a piece of paper 
a)
Chemical Change 
b)
Physical Change 
27.
Milk turning sour
a)
Chemical Change
b)
Physical Change 
28.
What is the symbol for the element Neon?
a)
Na
b)
Ne
c)
He
d)
N
29.
Which of the following is NOT a mixture? 
a)
NaCl + H2O
b)
C6H12O6 + H2O
c)
C6H12O6
d)
SiO2 +H2O
30.
Has properties different than the elements that make it up 
a)
Compound 
b)
Mixture 
31.
These are the two particles located inside the nucleus of an atom 
a)
Protons and Electrons 
b)
Protons and Neutrons 
c)
Electrons and Neutrons 
d)
Neutrons and Molecules 
32.

How many MOLECULES are in the following compound: CaCO3

a)

1

b)

3

c)

5

d)

0

33.

If I mix 8 grams of kool-aid powder with 82 grams of water, how much will the resulting kool-aid drink weigh?

a)

A little more than 82 grams

b)

74 grams

c)

90 grams

d)

82 grams

34.
A(n) _____ is a unique substance that forms when two or more elements combine chemically.
a)
element
b)
compound
c)
mixture
d)
all of the above
35.
If I have a block of wood with a density of 0.5 g/cm3 and I cut it in half, the density of one of the halves of wood would now be. . . 
a)
0.25 g/cm3 
b)
1.0 g/cm3
c)
0.5  g/cm3
d)
5.0  g/cm3
36.
Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is Silicon? 
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
37.
Where are electrons of an atom found?
a)
Nucleus
b)
Electron Cloud
c)
Some are in the nucleus and some in the electron cloud.
d)
They are moving everywhere.

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