FIND THE ANSWERS

An atom that has 20 electrons when it ionised has the same electron configuration as? a)argon b) calcium c)neon d)sodium?

Answer this question

Do you know the correct answer? Make money answering questions! Join now.
  • An atom that has 20 electrons when it ionised has the same electron configuration as? a)argon b) calcium c)neon d)sodium?


Answers