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WorksheetsThe Periodic Table
Total questions: 26
Worksheet time: 26mins
Name
Class
Date
1.
What is the center of an atom called?
a)
cloud
b)
orbit
c)
nucleus
d)
alpha center
2.
Elements arranged in the vertical columns on the Periodic Table are called
a)
groups
b)
periods
c)
valences
d)
metals
3.
The region around the nucleus where you find electrons is called
a)
the electron orbit
b)
the electron cloud
c)
the electron shell
d)
all of these answers are correct
4.
The region around the nucleus where you find electrons is called
a)
the electron orbit
b)
the electron cloud
c)
the electron shell
d)
all of these answers are correct
5.
The symbol for iron is
a)
I
b)
Ir
c)
Fe
d)
i
6.
The max number of electrons in the second shell of an atom is
a)
2
b)
8
c)
18
d)
32
7.
The sum of the number of protons and neutrons in an atom is
a)
the atomic number
b)
the atomic frequency
c)
the atomic mass
d)
the atomic valence
8.
The atomic number of an atom tells you
a)
the number of electrons
b)
the number of protons
c)
the number of neutrons
d)
the number of both the electrons and the protons
9.
The inner orbit of an atom can hold ___ electrons
a)
2
b)
8
c)
18
d)
32
10.
What makes up protons and neutrons?
a)
alpha particles
b)
beta particles
c)
quarks
d)
electrons
11.
The negative particle in an atom is a(n)
a)
proton
b)
neutron
c)
electron
d)
quark
12.
An isotope has a different number of ______ but the same number of _______
a)
protons, electrons
b)
protons, quarks
c)
quarks, neutrons
d)
neutrons, electrons
13.
When electrons jump from orbit to orbit they give off
a)
energy
b)
light
c)
mass
d)
both energy and light
14.
Do the following atoms belong in the same period or group: Ca and Sr
a)
period
b)
group
15.
Are the properties of an element in the same group similar or different?
a)
similar
b)
different
16.
What state of matter is Bromine at room temperature?
a)
solid
b)
liquid
c)
gas
d)
plasma
17.
How many electrons would be found in the second orbit of a Fluorine atom?
a)
2
b)
7
c)
8
d)
18
18.
How many electrons are found in the first orbit of a Hydrogen atom?
a)
1
b)
2
c)
4
d)
8
19.
What is the name of this element (Ag)?
a)
copper
b)
iron
c)
silver
d)
tin
20.
Who was the first person to discuss electrons as part of an atom?
a)
Ben Franklin
b)
Robert Millikin
c)
Ernest Rutherford
d)
JJ THompson
21.
Who was the person responsible for the current model of the atom?
a)
JJ Thompson
b)
Ernest Rutherford
c)
Ben Franklin
d)
Niels Bohr
22.
How many neutrons does the isotope Uranium-235 have?
a)
92
b)
235
c)
143
d)
238
23.
What side of the periodic table has metals?
a)
left
b)
middle
c)
right
d)
left and middle
24.
Where are the metalloids found on the periodic table?
a)
left
b)
middle
c)
stairstep on the right
d)
stairstep on the left
25.
Which is an example of an element named after a place?
a)
Am
b)
Fe
c)
Cu
d)
Bi
26.
True or false: The diameter of an unknown object can be calculated using a formula.
a)
true
b)
false
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