Why do transition metals compounds appear coloured?​

Because their unfilled d-orbital becomes excited

Explanation:

Transition metals are a group of elements that has an incompletely filled d shell e.g chromium, nickel, copper, iron etc. This characteristics of transition elements confers upon them the ability to form colored ions or compounds.

Transition elements/metals form colored compounds when the partially complete d-orbital becomes excited as a result of absorption of visible light. d-orbital at its lower energy becomes excited to d-orbital at a higher energy.

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)