which element is represented byA[10]..
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Neon is a chemical element with the symbol Ne and atomic number 10. It is a noble gas. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. Wikipedia
Symbol: Ne
Electron configuration: [He] 2s²2p⁶
Atomic mass: 20.1797 u
Atomic number: 10
Electrons per shell: 2,8
Van der Waals radius: 154 pm
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