The modern atomic mass unit if based on the mass of ………

Fill in the Blanks (i) The outermost electronic configuration of Cr is ……………. (ii) The 2p_(x),2p_(y), and 2p_(z) orbitals of atom have identical shapes but differ in their ………………….. (iii) Wave functions of electrons in atoms and molecules are called..................... (iv) The light radiations with discrete quantities of energy are called........................ (v) The uncertainty principle and the concept of wave nature of matter were prposed by........................ and ............................ respectively. (Heisenberg, Schrodinger, Maxwel, de Broglie) (vi) The wave number of the shortest wavelength transition in the Balmer series of atomic hydrogen is................ (vii) The modern atomic mass unit is based on the mass of ................... (viii) The orbitals possessing same energy are known as................................ (ix) Wave functions of electrons in atom and molecules are called............................ (x) The type of magnetism exhitited by [Mn(H_(2)O)_(6)]^(2+) ion is ........................... (xi) The p-orbitals are directed towards................ coordinate and are at ................... angles to one another. (xii) The energy change in an electron jump is given by....................

Define atomic mass unit

Define atomic mass unit.

Define atomic mass unit.