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Worksheetsatomic number, mass number, and isotopes
Total questions: 18
Worksheet time: 18mins
what is the atomic number of an atom?
number of protons
number of electrons
number of neutrons
number of neutrons & protons
what is the mass number of an atom?
protons
neutrons
number of protons and neutrons
number of protons, electrons and neutrons
what element has 13 protons
aluminum
iron
salt
arsenic
how is the mass number of an atom calculated?
add up the mass of protons and neutrons
multiply electrons & protons
add up the mass of protons and electrons
add up the mass of protons and neutrons times electrons
mass number is 40 what is the atomic number?
23
21
19
40
number of protons is 28 what is the mass number?
34
59
31
28
14C
6
carbon-14
carbon-6
carbon-20
what is iron on the periodic table?
On
Fe
V
Ir
A hydrogen atom with mass number of 3 has how many protons and how many neutrons?
3 protons & 3 neutrons
6 protons and 6 neutrons
3 protons & 6 neutrons
atomic symbol for silver
Ag
Au
Ai
Si
What is the atomic number of Barium, Ba? (enlarge the periodic table)
20
38
56
88
Which subatomic particle has a negative charge in the atom?
proton
neutron
electron
quark
How many neutrons does an atom of Nitrogen-13 have? (tap to enlarge the image)
6
7
13
5
If an atom has 10 electrons, how many protons does it have?
0
1
10
5
How many electrons are in an atom with an atomic number of 50?
5
8
50
2
How many neutrons does the element nickel have?
59
28
31
60
How many protons does the element copper have?
29
64
35
21
