Orbital : The space around the nucleus in which probability of finding the electron is maximum is called orbital . Shape is orbital For S subshell l=0, m=0 There is only one possible orbital this means that probability of finding the electron is same in all direction so all s orbital are sperical in shape but size of s orbital increase as principal quantum number increase. The gap in 2s or 3s is called nodal space This may be notice that inside the 2s and 3s orbital there is a finding the electron is zero that space is called nodal space. Number of space in an s -orbital =(n-1) where n is principal quantum number.
inorganic chemistry inorganic chemistry, atomic structure, periodic properties, covalent bond ,ionic bond, orbital, shape of orbital, numericals, dual nature wave nature bohr's postulates, hinesberg principal, quantum numbers, pauli exclusive principal, aufbau principal, limitation, electronic configuration of lanthanoids and transition elements, screening effect, shielding effect, slater rule and it's limitation.