WorksheetsIsotope
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
How many protons does P-30 have?
a)
30
b)
16
c)
12
d)
15
2.
Which of the following could have 14 neutrons?
a)
Al-27
b)
Si-29
c)
Mg-25
d)
Na-22
3.
How many protons does this isotope of titanium have?
a)
48
b)
22
c)
26
d)
70
4.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
5.
How many electrons does a Copper atom have?
a)
63
b)
29
c)
92
d)
34
6.
Found in the nucleus of the atom
a)
electrons only
b)
protons only
c)
neutrons and protons
d)
neutrons and electrons
7.
An element is defined by its number of
a)
protons
b)
electrons
c)
neutrons
d)
protons + electrons
8.
In a correctly written symbol what would be located in the "A" position?
a)
number of neutrons
b)
atomic number
c)
number of electrons
d)
mass number
9.
Isotopes are atoms of the same element that have the same number of __________ but different number of __________ . Therefore, isotopes of the same element have different masses.
a)
protons, neutrons
b)
protons, electrons
c)
neutrons, protons
d)
electrons, protons
10.
A neutral atom of the isotope 2612Mg would consist of
a)
12 protons, 26 neutrons, 26 electrons
b)
26 protons, 12 neutrons, 26 electrons
c)
26 protons, 14 neutrons, 14 electrons
d)
12 protons, 14 neutrons, 12 electrons
11.
What is the mass number of the element shown?
a)
15
b)
7
c)
8
d)
0
12.
An atom has 12 protons and 13 neutrons in its nucleus. Which is the correct symbol?
a)
b)
c)
d)
13.
The photo above shows the isotopic notation for which isotope?
a)
Carbon 12
b)
Carbon 13
c)
Carbon 14
d)
Carbon 15
14.
Different isotopes have...
a)
different masses
b)
different atomic numbers
c)
different electrons
d)
different protons
15.
How many neutrons does a Sodium 24 isotope have?
a)
12
b)
13
c)
14
d)
15
16.
How many neutrons does a Carbon 13 atom have?
a)
6
b)
5
c)
7
d)
8
17.
How many neutrons does a Calcium 48 isotope have?
a)
16
b)
20
c)
28
d)
12
18.
How many neutrons does an Oxygen-19 isotope have?
a)
19
b)
8
c)
11
d)
10
19.
How many neutrons does a Sulfur-32 isotope have?
a)
15
b)
16
c)
32
d)
12
20.
What is the atomic mass of the pictured isotope?
a)
2
b)
4
c)
6
d)
Hehehehe
100 %
