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WorksheetsAtoms, Molecules & Compounds
Total questions: 27
Worksheet time: 14mins
Name
Class
Date
1.
Which element is a metalloid?
a)
Carbon
b)
Boron
c)
Hydrogen
d)
Iron
2.
How many dots are there in the Lewis Dot Diagram of Oxygen, a group 16 element?
a)
8
b)
4
c)
6
d)
16
3.
What kind of bond holds together table salt, NaCl?
a)
Ionic
b)
Covalent
c)
Bipolar
d)
Nonpolar
4.
Group A: Lithium (Li), Iron (Fe), Calcium (Ca)
Group B: Boron (B), Silicon (Si), Polonium (Po)
Name one more element for each group.
Group B: Boron (B), Silicon (Si), Polonium (Po)
Name one more element for each group.
a)
Copper (Cu), Argon (Ar)
b)
Carbon (C), Helium (He)
c)
Sodium (Na), Germanium(Ge)
d)
Gold (Au), Silver (Ag)
5.
Which compound is formed by the attraction between negatively and positively charged ions?
a)
NaCl
b)
H2O
c)
CO2
d)
N2
6.
Noble gases don't react because their valence electrons are...
a)
zen.
b)
moving.
c)
neutral.
d)
stable.
7.
A(n) _______________ bond forms when one atom loses its electron to another atom forming one positively charged and one negatively charged ion.
a)
Covalent
b)
Ionic
c)
Unstable
d)
James
8.
A(n) ________________ bond forms when two nonmetal atoms share one or more pairs of valence electrons.
a)
Covalent
b)
Ionic
c)
Unstable
d)
Noble
9.
What would make bromine, a group 17 element, more similar to a noble gas?
a)
Gaining one electron
b)
Gaining two electrons
c)
Losing one electron
d)
Losing two electrons
10.
Which is the correct electron dot diagram for boron, one of the group 13 elements?
a)
1
b)
2
c)
3
d)
4
11.
Atoms lose, gain or share electrons and become as chemically stable as…
a)
metal
b)
ion
c)
electron
d)
noble gas
12.
Fluorine is a solid nonmetal. What is one property of fluorine?
a)
Dull appearance
b)
Conductivity
c)
Malleability
d)
Ductility
13.
Which information does the chemical formula CO2 NOT give you?
a)
Number of valence electrons in each atom
b)
Ratio of atoms in the compound
c)
Total number of atoms in one molecule of the compound
d)
Type of elements in the compound
14.
Covalent bonds typically form between the atoms of elements that share
a)
nuclei
b)
oppositely charged ions
c)
protons
d)
valence electrons
15.
Where are most metals on the periodic table?
a)
On the left
b)
On the right
c)
In the middle
d)
On the left and in the middle
16.
What is one similarity among groups on the periodic table?
a)
Atomic mass
b)
Atomic weight
c)
Chemical properties
d)
Practical uses
17.
What are two properties that make a metal a good choice to use as wire in electronics?
a)
Conductivity, malleability
b)
Ductility, conductivity
c)
Luster, malleability
d)
Malleability, high density
18.
Which is NOT a property of metals?
a)
Brittleness
b)
Conductivity
c)
Ductility
d)
Luster
19.
Using the element key for nitrogen, determine the atomic mass.
a)
7
b)
7.01
c)
14.007
d)
21.01
20.
What determines the order of elements on today's periodic table?
a)
increasing atomic mass
b)
decreasing atomic mass
c)
increasing atomic number
d)
decreasing atomic number
21.
Which part of an atom makes up most of its volume?
a)
protons
b)
neutrons
c)
nucleus
d)
electron cloud
22.
In the diagram, which letter is an electron?
a)
a
b)
b
c)
c
d)
none
23.
In the diagram, how many protons are there?
a)
6
b)
12
c)
8
d)
2
24.
In the diagram, how many valence electrons are there?
a)
6
b)
2
c)
4
d)
8
25.
What is true about the size of an atom?
a)
It can only be seen using a scanning tunneling microscope.
b)
It is about the size of the period at the end of this sentence.
c)
It is large enough to be seen using a magnifying lens.
d)
It is too small to see with any type of microscope.
26.
Which best describes at atom?
a)
A particle with a single negative charge
b)
A particle with a single positive charge
c)
The smallest particle that still represents a compound
d)
The smallest particle that still represents an element
27.
How ready do you feel for this test?
a)
Super ready.
b)
Ready, but nervous.
c)
Not that ready.
d)
Not ready at all OOMMMGGGG.
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