What type of orbital is occupied by an electron with
the quantum numbers n = 3, 1 =2? How many
degenerate orbital's of this type are found in a multi
electron atom?

the answer for sodium is 0.186

the answer for rubidium is 0.251

the volume increases

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer