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Mathematics, 01.04.2021 14:00 brii1387

PLEASE ANSWER THIS imagine is above
Figure 3 shows the electronic structure of an atom.
Figure 3
Electron
Nucleus
RON
This element is in the shaded group on Figure 2.
Why is this element unreactive?


PLEASE ANSWER THIS

imagine is above 
Figure 3 shows the electronic structure of an atom.
Figure 3

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PLEASE ANSWER THIS imagine is above
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