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Chemistry
Atomic Structure
Protons
An atom of barium (Ba) has
protons
9 answers
56 protons.
how many nuetrons
An atom of barium (Ba) has 81 neutrons.
how many electrons
An atom of barium (Ba) has 56 electrons.
how many energy levels
An atom of barium (Ba) has five energy levels.
how many valence electrons
An atom of barium (Ba) has two valence electrons.
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