carlos6178 carlos6178

10-12-2017
Chemistry

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What is the name of the element with a valence electron configuration of 4s^2

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wluo329 wluo329

10-12-2017

It is in period 4 bc it has a 4 in 4s2. Look at last element in that period. It is Krypton(36). The extra 2 electrons are from 4s^2. Add 36 + 2 to get 38, or Strontium.

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