Question 5 a + 3 cation of a certain transition metal has three electrons in its outermost d subshell. which transition metal could this be? shade all the possibilities in the periodic table outline below.

Chromium, molybdenum ([Kr] 4d⁵5s¹) and wolfram ([Xe] 4f¹⁴5d⁴6s²) cations have three d electrons.

₂₄Cr 1s²2s²2p⁶3s²3p⁶3d⁵4s¹.

₂₄Cr³⁺ 1s²2s²2p⁶3s²3p⁶3d ³ 4s⁰.

This three cations (chromium, molybdenum and wolfram) lost three electrons from last s orbital, because s orbital is far away from nucleus.