ScientificConstants
HasElement
test whether an element or isotope is in the ScientificConstants package
Calling Sequence
Parameters
Description
Examples
HasElement( descriptor )
descriptor
-
name
The HasElement( descriptor ) command returns true if descriptor is the name or symbol of an element, or the isotope syntax of an isotope in the ScientificConstants package. Otherwise, it returns false.
Note that if descriptor is an isotope syntax with mass number less than atomic number, the isotope syntax is invalid and an error is returned.
For a description of the isotope syntax, see Element.
withScientificConstants:
HasElementFe
true
HasElementFi
false
HasElementytterbium
HasElement114
HasElementC14
HasElement101,256
HasElementH7
See Also
Details of Commands for Elements and Isotopes
Initial Elements of the Periodic Table
ScientificConstants[Element]
ScientificConstants[GetElement]
ScientificConstants[GetElements]
ScientificConstants[GetIsotopes]
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