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WorksheetsAtom stability
Total questions: 10
Worksheet time: 5mins
An atom's stability is determined by its:
number of protons
number of electrons
mass
valence shell
An atom is stable only when its valence shell is:
full
not full
empty
the second orbital/energy level
Only _______________ have stable atoms.
metals
nonmetals
metalloids
noble gases
If an atom does not have a full valence shell, it will ___ in order to become stable.
vibrate
disintegrate
bond
change color
Which is NOT TRUE about cations?
they are metals
they have a positive charge
they gain protons
they lose electrons
Calcium is in Group/Column___ and will ____.
2; lose 2 electrons
2; gain 2 electrons
2; lose 2 protons
2; gain 2 neutrons
As an ion, nitrogen will have a ___ charge.
+5
-5
+3
-3
Br has ___ valence electrons
1
35
7
8
When stable, the LDS of oxygen will have ___ dots.
8
6
2
16
When stable, the LDS of B will have ___ dots.
3
8
5
0
