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WorksheetsMatter - Structure and Properties Unit 4
Total questions: 20
Worksheet time: 40mins
Name
Class
Date
1.
The fundamental building block of all matter is:
a)
molecule
b)
cell
c)
atom
d)
proton
2.
A compound is:
a)
A substance that is composed of two or more elements that are chemically bonded.
b)
A molecule formed by atoms of the same element.
c)
another word for an atom.
d)
any substance that can be spit apart.
3.
An element is made of one type of
a)
atom
b)
compound
c)
mixture
d)
molecule
4.
Which of the following is Not a property of metals?
a)
malleability
b)
good electrical conductivity
c)
brittleness
d)
goo heat conductivity
5.
Elements that are found in the same group/family have the same number of
a)
neutrons
b)
valence electrons
c)
protons and neutrons
d)
protons
6.
A period is
a)
another name for the periodic table.
b)
a vertical column of elements in the periodic table.
c)
a horizontal row of elements in the periodic table.
d)
a region of two or more columns in the periodic table.
7.
An ionic bond is a bond that forms between
a)
atoms with neutral charges.
b)
one atom's nucleus and another atom's electrons.
c)
ions with opposite charges.
d)
the electrons of two different atoms.
8.
Alkali metals are extremely reactive because they
a)
are not solid at room temp.
b)
have very small atomic masses.
c)
have two valence electrons that form compounds with calcium and magnesium.
d)
have one valence electron that is easily removed to form a positive ion.
9.
Most halogens form compounds by
a)
gaining an electron to form a negative ion.
b)
joining with both calcium and carbon.
c)
losing an electron to form a positive ion.
d)
losing protons.
10.
Covalent bonds are formed between
a)
ions.
b)
compounds.
c)
nonmetals atoms.
d)
metal atoms.
11.
A carbon atom can bond to four other atoms because
a)
four different cations.
b)
two inner energy levels.
c)
four valence electrons.
d)
no protons in its nucleus.
12.
Ionic bonds form as a result of the electrostatic attraction between
a)
dipoles.
b)
electrons.
c)
ions.
d)
nuclei.
13.
What is the apparent charge on a chlorine atom in the molecule HCL?
a)
+1
b)
-1
c)
ξ+
d)
ξ-
14.
A single covalent bond involves the sharing of
a)
only one electron.
b)
two electrons.
c)
three electrons.
d)
a variable number of electrons.
15.
Which of the following elements is most similar in behavior to calcium?
a)
magnesium.
b)
sulfur.
c)
sodium.
d)
chlorine.
16.
Carbon has ________ valence electrons and the capacity to create _________ covalent bonds.
a)
4,8
b)
4,2
c)
8.4
d)
4.4
17.
What is the correct notation for a calcium ion whose outer shell is a full octet?
a)
Ca1+
b)
Ca2+
c)
Ca1-
d)
Ca2-
18.
Transition metals such as copper or tungsten form compounds by
a)
gainging electrons to form negative ions.
b)
losing electrons to form positive ions.
c)
losing neutrons.
d)
changing shape and color.
19.
Silicon, a semiconductor, is often found in
a)
steel.
b)
computer.
c)
wood.
d)
air.
20.
Which of the following statement correctly identifies the valence trend on the periodic table.
a)
All elements in a column have the same number of valence electrons.
b)
As you go down the column, the number of valence electrons increases.
c)
As you go down a column, the number of valence electrons decreases.
d)
All elements have the same valence, 8.
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