What's the electron configuration for Oganesson? Atomic number-118

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What's the electron configuration for Oganesson? Atomic number-118

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Answer 1 · 2018-01-15T07:33:03

$[R n] 7 s^{2} 5 f^{14} 6 d^{10} 7 p^{6}$ $[Rn] 7s^2 5f^14 6d^10 7p^6$

Explanation:

For oganesson, we should probably use noble gas notation (to indicate that it has the same electron configuration as that noble gas to a certain point) because it would get too long otherwise.

The closest noble gas to oganesson is radon. So, make that the first part of the answer:
$[R n]$ $[Rn]$
PTable

Then, read the periodic table from left to right, beginning from radon.
PTable orbital mode
As you see, to get to oganesson, we go through:

The complete $7 s$ $7s$ orbital. The maximum number of electrons in the $s$ $s$ orbital is $2$ $2$ . It's full, so oganesson has $2$ $2$ electrons in the $7 s$ $7s$ orbital.
The complete $5 f$ $5f$ orbital (for the $f$ $f$ orbitals, subtract $2$ $2$ from the period number to get the energy level. So, for us, it would be $7 - 2 = 5$ $7-2=5$ .) The maximum number of electrons in the $f$ $f$ orbital series is $14$ $14$ . It's full, so oganesson has $14$ $14$ electrons in the $5 f$ $5f$ orbital.
The complete $6 d$ $6d$ orbital. The maximum number of electrons in the $d$ $d$ orbital series is $10$ $10$ . It's full, so oganesson has $10$ $10$ electrons in the $6 d$ $6d$ orbital.
The complete $7 p$ $7p$ orbital. The maximum number of electrons in the $p$ $p$ orbital series is $6$ $6$ . It's full, so oganesson has $6$ $6$ electrons in the $7 p$ $7p$ orbital.

Put that information all together:

$[R n] 7 s^{2} 5 f^{14} 6 d^{10} 7 p^{6}$ $[Rn] 7s^2 5f^14 6d^10 7p^6$

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What's the electron configuration for Oganesson? Atomic number-118

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