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WorksheetsAtoms and the Periodic Table
Total questions: 32
Worksheet time: 16mins
Name
Class
Date
1.
An atom has an atomic number of 20 and a mass number of 47. How many protons does it have?
a)
27
b)
47
c)
20
d)
67
2.
Which of the following determines the identity of an atom?
a)
number of neutrons
b)
overall charge
c)
atomic mass
d)
atomic number
3.
A nitrogen atom has 9 neutrons. What is its mass number?
a)
9
b)
7
c)
16
d)
Need more information
4.
The isotope Boron-11 contains 5 protons. Another isotope, Boron-10, contains _______ electrons.
a)
10
b)
5
c)
11
d)
Need more information
5.
The most current model of the atom is the
a)
Bohr model
b)
Shell model
c)
Electron cloud model
d)
Plum pudding model
6.
An atom is neutral if it has equal numbers of _________________________________________.
a)
electrons and protons
b)
neutrons and protons
c)
electrons and neutrons
d)
none of the above
7.
Which particle of an atom contains the least mass?
a)
protons
b)
electrons
c)
neutrons
d)
both protons and neutrons
8.
What is a neutron?
a)
a positively charged particle found in the nucleus of the atom
b)
a negatively charged particle found in the nucleus of the atom
c)
a negatively charged particle found outside of the nucleus
d)
a particle of the nucleus that has no charge
9.
What is an electron?
a)
a positively charged particle found in the nucleus of the atom
b)
a negatively charged particle found in the nucleus of the atom
c)
a negatively charged particle found outside of the nucleus
d)
a particle of the nucleus that has no charge
10.
What is a proton?
a)
a positively charged particle found in the nucleus of the atom
b)
a negatively charged particle found in the nucleus of the atom
c)
a negatively charged particle found outside of the nucleus
d)
a particle of the nucleus that has no charge
11.
What is an ion?
a)
an atom with equal numbers of protons and electrons
b)
an atom with equal numbers of protons, neutrons, and electrons
c)
an atom with unequal numbers of protons and electrons
d)
an atom with unqual numbers of protons and neutrons
12.
What is an isotope?
a)
atoms of the same element with different numbers of neutrons
b)
atoms of different elements with the same number of neutrons
c)
atoms of the same element with different numbers of electrons
d)
atoms of different elements with the same number of protons
13.
True or False:
All atoms of an element are the same because they have the same number of protons.
All atoms of an element are the same because they have the same number of protons.
a)
TRUE
b)
FALSE
14.
How is atomic mass different from a mass number?
a)
Atomic mass is the sum of the masses of all the isotopes of an element.
b)
Mass number is the sum of the masses of all naturally occurring isotopes.
c)
Mass number is the weighted average of radioactive isotopes of an element.
d)
Atomic mass is the weighted average of the masses of all the naturally occurring isotopes.
15.
If an atom of lithium has 3 protons, 3 neutrons, and 3 electrons, what is the mass number?
a)
3
b)
6
c)
9
d)
27
16.
Which of the following would represent an ion?
a)
12 p, 12 n, 12 e
b)
13 p, 12 n, 13 e
c)
12 p, 13 n, 12 e
d)
12 p, 12 n, 13 e
17.
An element that is a very reactive gas is most likely a member of the __________________.
a)
alkali metals
b)
lanthanides
c)
noble gases
d)
halogens
18.
Most of the periodic table consists of _____________.
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Gases
19.
Where are nonmetals found on the periodic table?
a)
To the far right
b)
In the center
c)
Separated at the bottom
d)
To the left
20.
True or False:
On the periodic table, elements are arranged by increasing atomic number.
On the periodic table, elements are arranged by increasing atomic number.
a)
TRUE
b)
FALSE
21.
Which of the following elements is most likely a metalloid?
a)
An element to the far left
b)
An element in the middle
c)
An element to the far right
d)
An element bordering the zigzag line
22.
What is a period on the periodic table?
a)
A row of elements
b)
A column of elements
23.
TRUE OR FALSE:
Elements in the same period tend to have similar properties.
Elements in the same period tend to have similar properties.
a)
TRUE
b)
FALSE
24.
The elements in a period become
a)
more metallic moving from left to right
b)
less metallic moving from top to bottom
c)
less metallic moving from left to right
d)
more metallic moving from top to bottom
25.
True or False:
Elements farthest to the right are unreactive.
Elements farthest to the right are unreactive.
a)
TRUE
b)
FALSE
26.
What is a group (or family) on the periodic table?
a)
a row of elements
b)
a column of elements
27.
Based on their properties, how are elements categorized?
a)
solid, liquid, or gas
b)
neutral or ionized
c)
metals, nonmetals, and metalloids
d)
reactive or unreactive
28.
Which group of metals is the most reactive?
a)
Group 1-Alkali metals
b)
Group 2-Alkaline earth metals
c)
The transition metals
d)
Lanthanides and actinides
29.
Atoms of most nonmetals have ________ electrons in their outer energy level.
a)
few
b)
almost a complete set of
c)
a complete set of
d)
half of a complete set of
30.
Where do you find the transition metals?
a)
Group 1
b)
Group 2
c)
Groups 3-12
d)
Groups 13-16
31.
Why are noble gases unreactive?
a)
They have no valence electrons
b)
They have a full set of valence electrons
c)
They are neutral
d)
They are isotopes
32.
How do you think you will do on the test tomorrow?
a)
SO AWESOME! =)
b)
I'll pass... =/
c)
Not sure =(
d)
Failure is certain :{
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