## NMR-STAR dictionary: database table: AtomType

Detailed description of the fields

### _Atom_type.ID (AtomTypeID)

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NMR-STAR tag name | _Atom_type.ID
Description | NMR-STAR name: _Atom_type.ID Integer value that uniquely defines the atom type. The primary key for this table.
Database field name | AtomTypeID
SQL Database type | INTEGER
Part of primary Key | yes
Foreign Key on table, column | ,
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | yes
Prompt | ID
Examples | 1
Help text |

### _Atom_type.Symbol (Symbol)

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NMR-STAR tag name | _Atom_type.Symbol
Description | NMR-STAR name: _Atom_type.Symbol Standard symbol used to define the atom element type.
Database field name | Symbol
SQL Database type | VARCHAR(3)
Part of primary Key | no
Foreign Key on table, column | ,
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | no
Prompt | Symbol
Examples | C
Help text |

### _Atom_type.Atomic_number (AtomicNumber)

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NMR-STAR tag name | _Atom_type.Atomic_number
Description | NMR-STAR name: _Atom_type.Atomic_number Atomic number for the atom (number of protons in the nucleus).
Database field name | AtomicNumber
SQL Database type | INTEGER
Part of primary Key | no
Foreign Key on table, column | ,
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | no
Prompt | Atomic number
Examples | 6
Help text |

### _Atom_type.Isotope_number (IsotopeNumber)

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NMR-STAR tag name | _Atom_type.Isotope_number
Description | NMR-STAR name: _Atom_type.Isotope_number Isotope number for the atom (number of protons plus the number of neutrons in the nucleus).
Database field name | IsotopeNumber
SQL Database type | INTEGER
Part of primary Key | no
Foreign Key on table, column | ,
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | no
Prompt | Isotope number
Examples | 13
Help text |

### _Atom_type.Oxidation_number (OxidationNumber)

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NMR-STAR tag name | _Atom_type.Oxidation_number
Description | NMR-STAR name: _Atom_type.Oxidation_number Oxidation number for the atom.
Database field name | OxidationNumber
SQL Database type | CHAR(12)
Part of primary Key | no
Foreign Key on table, column | ,
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | no
Prompt | Oxidation number
Examples | 0
Help text |

### _Atom_type.Paramagnetic (Paramagnetic)

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NMR-STAR tag name | _Atom_type.Paramagnetic
Description | NMR-STAR name: _Atom_type.Paramagnetic Code or flag indicating if the atom in the is paramagnetic.
Database field name | Paramagnetic
SQL Database type | VARCHAR(3)
Part of primary Key | no
Foreign Key on table, column | ,
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | no
Enumerations | [click for a list of enumerations] This is a closed enumeration. The list of values are the only ones allowed.
Prompt | Paramagnetic
Examples | no
Help text |

### _Atom_type.Electron_configuration (ElectronConfiguration)

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NMR-STAR tag name | _Atom_type.Electron_configuration
Description | NMR-STAR name: _Atom_type.Electron_configuration The configuration of electrons in the electron orbitals of the atom.
Database field name | ElectronConfiguration
SQL Database type | VARCHAR(31)
Part of primary Key | no
Foreign Key on table, column | ,
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | no
Prompt | Electron configuration
Examples | ?
Help text |

### _Atom_type.Unpaired_electron_number (UnpairedElectronNumber)

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NMR-STAR tag name | _Atom_type.Unpaired_electron_number
Description | NMR-STAR name: _Atom_type.Unpaired_electron_number Number of unpaired electrons surrounding the atom.
Database field name | UnpairedElectronNumber
SQL Database type | INTEGER
Part of primary Key | no
Foreign Key on table, column | ,
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | no
Prompt | Unpaired electron number
Examples | 0
Help text |

### _Atom_type.Atomic_mass (AtomicMass)

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NMR-STAR tag name | _Atom_type.Atomic_mass
Description | NMR-STAR name: _Atom_type.Atomic_mass Atomic mass for the atom.
Database field name | AtomicMass
SQL Database type | FLOAT
Part of primary Key | no
Foreign Key on table, column | ,
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | no
Prompt | Atomic mass
Examples | ?
Help text |

### _Atom_type.Van_der_Vaals_radii (VanDerVaalsRadii)

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NMR-STAR tag name | _Atom_type.Van_der_Vaals_radii
Description | NMR-STAR name: _Atom_type.Van_der_Vaals_radii Van der Vaals radii for the atom
Database field name | VanDerVaalsRadii
SQL Database type | FLOAT
Part of primary Key | no
Foreign Key on table, column | ,
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | no
Prompt | Van der Vaals radii
Examples | ?
Help text |

### _Atom_type.Sf_ID (SfID)

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NMR-STAR tag name | _Atom_type.Sf_ID
Description | NMR-STAR name: _Atom_type.Sf_ID Pointer to '_Assembly.Sf_ID'
Database field name | SfID
SQL Database type | INTEGER
Part of primary Key | no
Foreign Key on table, column | Assembly, Sf_ID
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | yes This field's data is for internal use only and should be hidden in public versiond of the data.
Nulls allowed in database? | yes
Prompt | Sf ID
Examples | ?
Help text |

### _Atom_type.Entry_ID (EntryID)

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NMR-STAR tag name | _Atom_type.Entry_ID
Description | NMR-STAR name: _Atom_type.Entry_ID Pointer to '_Entry.ID'
Database field name | EntryID
SQL Database type | CHAR(12)
Part of primary Key | yes
Foreign Key on table, column | Assembly, Entry_ID
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | yes
Prompt | Entry ID
Examples | ?
Help text |

### _Atom_type.Assembly_ID (AssemblyID)

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NMR-STAR tag name | _Atom_type.Assembly_ID
Description | NMR-STAR name: _Atom_type.Assembly_ID Pointer to '_Assembly.ID'
Database field name | AssemblyID
SQL Database type | INTEGER
Part of primary Key | yes
Foreign Key on table, column | Assembly, ID
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | yes
Prompt | Assembly ID
Examples | ?
Help text |