Looking for answers? Westonci.ca is your go-to Q&A platform, offering quick, trustworthy responses from a community of experts. Experience the ease of finding accurate answers to your questions from a knowledgeable community of professionals. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.

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


Sagot :

Rubidium

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

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: