electronic structure- year 9 chemistry
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what are the rules for electronic structre?
lowest energy level holds up to 2 electrons
the second and third energy levels hold up to 8 electrons
2
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what odes the group number equal?
The number of electrons in the outer shell
3
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what odes the outer shell define?
How atoms react
4
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what does the period number equal?
the number of electron shells
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