Struct Element 

pub struct Element(/* private fields */);

An element represented as its atomic number, wrapped in a newtype.

Zero-copy: implements Copy; comparison and hashing are O(1).

Implementations

impl Element

pub const H: Element

pub const HE: Element

pub const LI: Element

pub const BE: Element

pub const B: Element

pub const C: Element

pub const N: Element

pub const O: Element

pub const F: Element

pub const NE: Element

pub const NA: Element

pub const MG: Element

pub const AL: Element

pub const SI: Element

pub const P: Element

pub const S: Element

pub const CL: Element

pub const AR: Element

pub const K: Element

pub const CA: Element

pub const SC: Element

pub const TI: Element

pub const V: Element

pub const CR: Element

pub const MN: Element

pub const FE: Element

pub const CO: Element

pub const NI: Element

pub const CU: Element

pub const ZN: Element

pub const GA: Element

pub const GE: Element

pub const AS: Element

pub const SE: Element

pub const BR: Element

pub const KR: Element

pub const RB: Element

pub const SR: Element

pub const Y: Element

pub const ZR: Element

pub const NB: Element

pub const MO: Element

pub const TC: Element

pub const RU: Element

pub const RH: Element

pub const PD: Element

pub const AG: Element

pub const CD: Element

pub const IN: Element

pub const SN: Element

pub const SB: Element

pub const TE: Element

pub const I: Element

pub const XE: Element

pub const CS: Element

pub const BA: Element

pub const LA: Element

pub const CE: Element

pub const PR: Element

pub const ND: Element

pub const PM: Element

pub const SM: Element

pub const EU: Element

pub const GD: Element

pub const TB: Element

pub const DY: Element

pub const HO: Element

pub const ER: Element

pub const TM: Element

pub const YB: Element

pub const LU: Element

pub const HF: Element

pub const TA: Element

pub const W: Element

pub const RE: Element

pub const OS: Element

pub const IR: Element

pub const PT: Element

pub const AU: Element

pub const HG: Element

pub const TL: Element

pub const PB: Element

pub const BI: Element

pub const PO: Element

pub const AT: Element

pub const RN: Element

pub const FR: Element

pub const RA: Element

pub const AC: Element

pub const TH: Element

pub const PA: Element

pub const U: Element

pub const NP: Element

pub const PU: Element

pub const AM: Element

pub const CM: Element

pub const BK: Element

pub const CF: Element

pub const ES: Element

pub const FM: Element

pub const MD: Element

pub const NO: Element

pub const LR: Element

pub const RF: Element

pub const DB: Element

pub const SG: Element

pub const BH: Element

pub const HS: Element

pub const MT: Element

pub const DS: Element

pub const RG: Element

pub const CN: Element

pub const NH: Element

pub const FL: Element

pub const MC: Element

pub const LV: Element

pub const TS: Element

pub const OG: Element

pub const fn from_atomic_number(n: u8) -> Option<Self>

Create an Element from an atomic number. Returns None if n is outside 1–118.

pub fn from_symbol(s: &str) -> Option<Self>

Create an Element from its symbol (title-case, e.g. “C”, “Cl”). Case-sensitive: “C” is carbon, “c” is not accepted.

pub fn symbol(self) -> &'static str

Return the IUPAC element symbol (title-case).

pub fn atomic_number(self) -> u8

Return the atomic number (1–118).

pub fn is_organic_subset(self) -> bool

Returns true if this element is in the OpenSMILES organic subset (B, C, N, O, P, S, F, Cl, Br, I) — these may carry implicit H without brackets.

pub fn vdw_radius(self) -> f32

van der Waals radius in Å (Bondi 1964 + Alvarez 2013). Unknown/synthetic elements return 1.70 (carbon fallback).

pub fn covalent_radius(self) -> f32

Single-bond covalent radius in Å (Alvarez 2008). Unknown elements return 0.77 (sp3 carbon fallback).

pub fn atomic_mass(self) -> f64

Monoisotopic (exact) mass of the most abundant isotope (u). Used as CIP rule 4 tiebreaker: higher atomic mass has higher priority.

pub fn normal_valences(self) -> &'static [u8]

Normal valence list (ascending). Empty = undefined (transition metals, etc.). Used for computing implicit H counts in organic-subset atoms.

Trait Implementations

impl Clone for Element

fn clone(&self) -> Element

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Element

impl Debug for Element

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Element

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Element

impl Hash for Element

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Element

fn cmp(&self, other: &Element) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Element

fn eq(&self, other: &Element) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Element

fn partial_cmp(&self, other: &Element) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Element