WorksheetsIsotopes
Total questions: 15
Worksheet time: 12mins
Name
Class
Date
1.
What do these isotopes of carbon all have in common?
a)
neutrons & mass number
b)
atomic number and neutrons
c)
atomic number and electrons
d)
protons, atomic number, and mass number
2.
Isotopes are atoms of the same element with different #’s of __________ & therefore different __________.
a)
neutrons ; atomic numbers
b)
protons ; atomic numbers
c)
electrons ; mass numbers
d)
neutrons ; mass number
3.
How many neutrons does an atom of the isotope Neon-22 have?
a)
12
b)
10
c)
22
d)
20
4.
Two isotopes of carbon are carbon-12 and carbon-14. These isotopes differ from one another by two protons.
a)
true
b)
false
5.
How many protons does this isotope of titanium have?
a)
48
b)
22
c)
26
d)
70
6.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
7.
The photo above shows the isotopic notation for which isotope?
a)
Carbon 12
b)
Carbon 13
c)
Carbon 14
d)
Carbon 15
8.
How many neutrons does a Sodium 24 isotope have?
a)
12
b)
13
c)
14
d)
15
9.
How many neutrons does a Calcium 48 isotope have?
a)
16
b)
20
c)
28
d)
12
10.
What is the name of the pictured isotope?
a)
Copper-29
b)
Copper-63
c)
Copper-34
d)
CopperWopperHopperBopper
11.
How many electrons does a Copper atom have?
a)
63
b)
29
c)
92
d)
34
12.
which atom has 4 neutrons?
a)
Li-6
b)
Li-7
c)
Li-8
d)
they have the same # of neutrons
13.
If X is the symbol for an element, which of the following two symbols represent isotopes of the same element? I. 7735X II. 7733X III. 8137X IV. 8135 X
a)
I and II
b)
III and IV
c)
I and IV
d)
I and III
14.
What is the name of the pictured isotope?
a)
Carbon-12
b)
Carbon-13
c)
Carbon-14
d)
Carbon-15
15.
Which phrase describes two atoms that are isotopes
a)
Same mass number, same atomic number
b)
Same mass number, different atomic number
c)
Different mass number, same atomic number
d)
Different mass number, different atomic number
100 %
