The electron configuration of a cation with a 2+ charge is shown below. 1s22s22p63s23p6

What is the electron configuration for the ion’s neutral parent atom? The atom is a main group element. Name the group that the parent atom likely belongs to on the Periodic Table and identify one chemical property of the parent atom.

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.

the awnser is group 12

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