$13.$ In the image below, $\backslash ($ a$=2\mathrm{.}10\backslash$mathrm$\{$~nm$\}\backslash )$ and $\backslash ($ b$=4\mathrm{.}20\backslash$mathrm$\{$~nm$\}\backslash ).$

Ill $(-)$

$13$a$.$ At what position is the electron most likely to be found? $\backslash (\backslash$mathbf$\{0.00\}\backslash$mathbf$\{$~ m$\}\backslash )$

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Your receipt no$.$ is $154-6909(3)$ Previous Tries

$13$b$.$ At what positions are the electron least likely to be found? $($Enter the lowest of the two positions first, followed by the higher of the two.$)$