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02-09-2021
Chemistry

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Which of these elements has an electron configuration of [Kr]5s2?
barium
calcium
rubidium
strontium

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Аноним Аноним

02-09-2021

Rubidium

Atomic No-37
Short name-Rb
Block belongs=s-block.
Period=5th period
Group=1st group

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bjhggvhgy bjhggvhgy

08-09-2021

Answer:

The element that has an electron configuration of [Kr]5s2 is strontium. The rest of the given choices do not answer the question above.

Answer: D

Explanation:

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