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grandymaker [24]
3 years ago
9

an auto of an element has 17 protons in its nucleus.a) write the electronic configuration of the atom.b)to what period and group

does the element belong​
Chemistry
1 answer:
polet [3.4K]3 years ago
5 0

Answer:

i hope it will help you

Explanation:

electronic configuration 1s²,2s,²2p^6,3s²3p^6,4s^1

as it has one electron in its valence shell so it is the member of group 1A(ALKALI METALS)  and the number of shells is 4 so it is in period 4

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Explanation:

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Chemical equation: SO_{3}^{2-}(aq.)\rightarrow SO_{4}^{2-}(aq.)

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