Zazzle. Periodic Table of Elements (Barium) Square Stickers. 2000. N.p.
Barium
Symbol: Ba
Atomic number: 56
Atomic mass: 137.327
Protons: 56
Electrons: 56
Neutrons: 86
Energy Levels: 6
Atomos, Atomos |
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Symbol: Ba
Atomic number: 56
Atomic mass: 137.327
Protons: 56
Electrons: 56
Neutrons: 86
Energy Levels: 6