Class JSci.chemistry.periodictable.Helium
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Class JSci.chemistry.periodictable.Helium
java.lang.Object
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+----JSci.chemistry.Element
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+----JSci.chemistry.periodictable.NobleGas
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+----JSci.chemistry.periodictable.Helium
- public final class Helium
- extends NobleGas
A class representing helium.
-
Helium()
- Constructs helium.
-
atomicNumber()
- Returns the atomic number.
-
atomicRadius()
- Returns the atomic radius.
-
boilingPoint()
- Returns the boiling point.
-
covalentRadius()
- Returns the covalent radius.
-
density()
- Returns the density (293K).
-
electricalConductivity()
- Returns the electrical conductivity.
-
electronegativity()
- Returns the electronegativity.
-
massNumber()
- Returns the mass number.
-
meltingPoint()
- Returns the melting point.
-
specificHeat()
- Returns the specific heat.
-
thermalConductivity()
- Returns the thermal conductivity.
-
toString()
- Returns the chemical symbol.
Helium
public Helium()
- Constructs helium.
atomicNumber
public int atomicNumber()
- Returns the atomic number.
- Returns:
- 2
- Overrides:
- atomicNumber in class Element
massNumber
public int massNumber()
- Returns the mass number.
- Returns:
- 4
- Overrides:
- massNumber in class Element
electronegativity
public double electronegativity()
- Returns the electronegativity.
- Returns:
- 0.0
- Overrides:
- electronegativity in class Element
covalentRadius
public double covalentRadius()
- Returns the covalent radius.
- Returns:
- 0.93
- Overrides:
- covalentRadius in class Element
atomicRadius
public double atomicRadius()
- Returns the atomic radius.
- Returns:
- 0.49
- Overrides:
- atomicRadius in class Element
meltingPoint
public double meltingPoint()
- Returns the melting point.
- Returns:
- 0.95
- Overrides:
- meltingPoint in class Element
boilingPoint
public double boilingPoint()
- Returns the boiling point.
- Returns:
- 4.215
- Overrides:
- boilingPoint in class Element
density
public double density()
- Returns the density (293K).
- Returns:
- 0.0001787
- Overrides:
- density in class Element
specificHeat
public double specificHeat()
- Returns the specific heat.
- Returns:
- 5.193
- Overrides:
- specificHeat in class Element
electricalConductivity
public double electricalConductivity()
- Returns the electrical conductivity.
- Returns:
- 0.0
- Overrides:
- electricalConductivity in class Element
thermalConductivity
public double thermalConductivity()
- Returns the thermal conductivity.
- Returns:
- 0.00152
- Overrides:
- thermalConductivity in class Element
toString
public String toString()
- Returns the chemical symbol.
- Returns:
- He
- Overrides:
- toString in class Object
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