The AddProperty( name ) command adds the element property named name to the ScientificConstants package for the current session.

The AddProperty( name, 'isotopic' ) command adds the isotope property named name to the ScientificConstants package for the current session.

To add a property to all future Maple sessions, add the AddProperty command to your Maple initialization file. For more information, see Create Maple Initialization File.

$\mathrm{with}\left(\mathrm{ScientificConstants}\right)\:$

$\mathrm{AddProperty}\left(\mathrm{atomicradius}\right)$

$\mathrm{GetProperties}\left(\right)$

$\mathrm{atomicradius},\mathrm{atomicweight},\mathrm{boilingpoint},\mathrm{density},\mathrm{electronaffinity},\mathrm{electronegativity},\mathrm{ionizationenergy},\mathrm{meltingpoint}$

$\mathrm{AddProperty}\left(\mathrm{neutronnumber}\,\mathrm{isotopic}\right)$

$\mathrm{GetProperties}\left('\mathrm{isotopic}'\right)$

$\mathrm{abundance},\mathrm{atomicmass},\mathrm{betadecayenergy},\mathrm{bindingenergy},\mathrm{electronaffinityisotopic},\mathrm{halflife},\mathrm{massexcess},\mathrm{neutronnumber}$