WorksheetsAtoms and Isotopes
Total questions: 13
Worksheet time: 9mins
What is the mass number of bromine?
35
45
80
79.904
How many neutrons does this bromine atom have?
35
45
80
What is the atomic number of this element?
12
24
23
What is the mass number of this element?
12
24
23
11
Isotopes have....(Select ALL that apply)
same number of protons
different number of electrons
same number of electrons
different number of neutrons
Same number of neutrons
What does the atomic number identify?
The number of neutrons of a given atom.
The number of protons of a given atom.
The number of neutrons and protons of a given atom.
The number of electrons of a given atom.
The number of protons + neutrons in an atomic nucleus is referred to as what?
Atomic number
Isotope number
Mass number
Which subatomic particle is used to identify the atom, as it never changes?
protons
neutrons
electrons
How many protons are found in this isotope? 7533As
75
42
33
108
How many neutrons are in the following isotope?
108
47
61
155
How many protons are found in the following isotope?
207
82
125
289
Atoms of the same element with differing numbers of neutrons are _______________.
isotopes
ions
elements
nucleus
