Question

The orbital diagram that follows shows the valence electron for a 2+ ion of an element. what is the element.

Answer 1

This is the 4d orbital.

Answer 2

I say it's Palladium. The book says it's Ruthenium.

Answer 3

Someone want to explain why?

Answer 4

4d is at the 5th period (starting with Rb)

the number of electrons in the d orbitals are 6 (the 2 electrons ionized are from the 5s orbital)

if you count 6 of spaces in the d orbitals you get Ru

Answer 5

i would've thought they came off the d orbital @aaronq

Answer 6

they don't, the difference in energy between the principal quantum numbers is larger the energy between orbitals. In other words, 5s has more energy than 4d, so it is ionized first.

Answer 7

ty @aaronq