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Worksheetsatoms & the periodic table
Total questions: 50
Worksheet time: 44mins
Name
Class
Date
1.
What is the atomic number?
a)
number of protons
b)
number of neutrons
c)
number of protons and neutrons
2.
What is the mass number?
a)
the number of protons
b)
sum of the protons and the neutrons in the nucleus of an atom
c)
the number of neutrons
d)
the number of electrons
3.
an electron has this charge
a)
positive
b)
negative
c)
neutral
4.
a neutron has this charge
a)
negative
b)
positive
c)
neutral
5.
a proton has this charge
a)
negative
b)
positive
c)
neutral
6.
atoms of the same element with different numbers of neutrons are...
a)
isotopes
b)
quarks
7.
An element is composed of how many types of atoms?
a)
5
b)
3
c)
1
8.
vertical columns in the periodic table are _________ of elements with similar properties.
a)
groups
b)
periods
9.
_______ are horizontal rows of elements that contain increasing numbers of protons and electrons.
a)
groups
b)
periods
10.
an ______ is the area around the nucleus of an atom where its electrons are most likely found.
a)
electron ring
b)
electron cloud
11.
What is an electron dot diagram?
a)
use the element symbol and dots to represent OUTER energy level electrons.
b)
Use the element symbol and dots to represent INNER energy level electrons.
12.
Elements that have properties of both metals and nonmetals are _____
a)
metals
b)
metalloids
c)
nonmetals
13.
energy level one can contain at most _____ electrons.
a)
2
b)
8
c)
18
14.
___________ composed mostly of the protons and neutrons in the nucleus.
a)
atomic mass
b)
mass number
c)
atomic number
15.
all matter is made of what
a)
energy
b)
atoms
c)
electrons
d)
compounds
16.
The positive particles of an atom are
a)
electrons
b)
positrons
c)
neutrons
d)
protons
17.
the central region of an atom where its neutrons and protons are is its
a)
nucleus
b)
electron cloud
c)
core
d)
center
18.
an atom with atomic number 6 would have how many protons
a)
6
b)
12
c)
3
d)
cannot be determined
19.
Who first proposed the idea of matter than could not be cut any further and named it atom
a)
Democritus
b)
Aristotle
c)
Dalton
d)
Thomson
20.
An atom's overall charge is
a)
positive
b)
depends on its mood
c)
neutral
d)
negative
21.
Which element has the atomic number 10?
a)
Neon
b)
Fluorine
c)
Potassium
d)
Hydrogen
22.
How many protons are in the element, "Sodium?"
a)
23
b)
11
c)
13
d)
14
23.
How many electrons are in the element oxygen?
a)
7
b)
10
c)
8
d)
9
24.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
25.
Which statement best describes an electron?
a)
Smaller mass than a proton and a negative charge
b)
Smaller mass than a proton and a positive charge
c)
Greater mass than a proton and a negative charge
d)
Greater mass than a proton and a positive charge
26.
Most of the mass in an atom is concentrated in the...
a)
electrons
b)
nucleus
c)
protons
d)
empty space
27.
A particle that moves around outside the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
28.
Which particle has a similar mass to a proton?
a)
Electron
b)
Neutron
c)
Photon
d)
Marble
29.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
30.
How many electrons can the first energy level hold?
a)
8
b)
4
c)
2
d)
5
31.
The second energy level can hold up to ____ electrons?
a)
2
b)
8
c)
10
d)
12
32.
How many valence eletrons are in the atom "Mg"?
a)
1
b)
2
c)
3
d)
9
33.
What is the atomic mass of "F"
a)
9
b)
18
c)
17
d)
19
34.
How many the valence eletrons does "Al" have?
a)
5
b)
10
c)
3
d)
13
35.
The elements in this group have 5 valence electrons and include elements N, P, and As.
a)
Group 5
b)
Group 1
c)
Group 18
d)
Group 15
36.
If an element is in Group 14, it can lose or gain how many valence electrons?
a)
2
b)
4
c)
3
d)
8
37.
A chemical formula is considered to be organic if it contains the element...
a)
Carbon
b)
Oxygen
c)
Hydrogen
d)
Helium
38.
Which of the following is an organic formula?
a)
CH4
b)
O2
c)
NaCl
d)
H2O
39.
All the elements on the elements on the right of the periodic table are called...
a)
Metals
b)
Metalloids
c)
Nonmetals
40.
All the elements on the left side of the periodic table are called..
a)
Metals
b)
Metalloid
c)
Nonmetals
41.
Which family of metals is most reactive?
a)
transition metals
b)
boron family
c)
alkali family
d)
noble gases
42.
Which element is not a metal?
a)
H
b)
Re
c)
Al
d)
B
43.
What is the name of the group that has the MOST reactive NONMETALS in it?
a)
alkali
b)
alkaline earth
c)
noble gases
d)
halogens
44.
What is the name of the group that never reacts--they are stable with a full outermost ring!!!
a)
noble gases
b)
transition
c)
halogens
d)
borons
45.
What subatomic particle identifies an element?
a)
electrons
b)
protons
c)
neutrons
d)
quarks
46.
Which group has 8 valence electrons?
a)
alkali metals
b)
alkaline earth metals
c)
halogens
d)
noble gases
47.
What are the three subatomic particles of an atom?
a)
Electron, Proton, Neutron
b)
Electron, Glutons, Protons
c)
Protons, Glutons, Neutrons
d)
Neutrons, Electrons, Glutons
48.
Rows on the period table are called _____ while columns are called _____.
a)
groups, families
b)
groups, periods
c)
periods, groups
d)
families, groups
49.
Where on the periodic table are the metalloids found?
a)
Right Side
b)
Along the Zig Zag Line
c)
Left Side
d)
bottom two rows
50.
What is the name of the group with 2 valence electrons?
a)
alkali metals
b)
alkaline earth metals
c)
halogens
d)
noble gases
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