In themodern periodictablethe periodindicatedthe value of ( a)atomicnumber ( b)mas number( c) principalquantumnumber (d) azimuthalquantum number

In themodern periodictablethe periodindicatedthe value of ( a)atomicnu

1.	In themodern periodictablethe periodindicatedthe value of ( a)atomicnumber ( b)mas number( c) principalquantumnumber (d) azimuthalquantum number
Answer» Solution :In themodernperiodictableeachperiodbeginswith thefillingof a newshell.Therefore TRHE periodindicates THEVALUE ofprincipal QUANTUM number. Thusoption ( C) is CORRECT .