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WorksheetsCh 3: Atoms and the Periodic Table
Total questions: 25
Worksheet time: 14mins
The central region of an atom where its neutrons and protons are located is its
nucleus
electron cloud
core
center
An atom with atomic number 8 would have how many protons
8
16
4
it depends on atomic mass
An atom is neutral because...
it has the same number of protons as neutrons
it has the same number of protons as electrons
it has the same number of neutrons as electrons
the protons are in the nucleus
What does the 1.00794 stand for?
mass number
atomic number
average atomic mass
number of protons
If an atom has 12 protons, which of the following must it also have to be considered a neutral atom?
12 neutrons
12 electrons
12 protons
24 protons and neutrons
If the mass number of this chlorine atom is 36, how many neutrons does it have?
17
18
19
can't be determined
Most of the mass of an atom is found in the ______.
nucleus
proton
electron cloud
isotope
Using the diagram as a reference, how many electrons does lithium have in its OUTER shell?
1
3
8
2
Using the diagram as a reference, how many electrons does carbon have in its OUTER shell?
2
6
4
1
Using the diagram as a reference, how many electrons does neon have in its OUTER shell?
10
8
2
6
The name of the family of elements in Group 1 (red) is...
noble gases
alkali
halogens
alkaline earth metals
The name of the family of elements in Group 2 (orange) is...
noble gases
alkali
halogens
alkaline earth metals
The name of the family of elements in Group 17 (purple) is...
noble gases
alkali
halogens
alkaline earth metals
The name of the family of elements in Group 18 (light blue) is...
noble gases
alkali
halogens
alkaline earth metals
What is the fact shown by the N?
Element name
Atomic mass
Chemical symbol
Atomic number
What is the fact shown by the 7?
Element name
Atomic mass
Chemical symbol
Atomic number
What is the fact shown by the 14.0067?
Element name
Atomic mass
Chemical symbol
Atomic number
What is the fact shown by the label "Nitrogen"?
Element name
Atomic mass
Chemical symbol
Atomic number
