einsteinium
Chemical element with symbol Es and atomic number 99
Also known as 99Es · Es · element 99
- Symbol
- Es
- Atomic number
- 99
- Mass
- 252.083 Da
1
Sources- 1.physics.nist.gov/cgi-bin/Compositions/stand_alone.pl?ele=&ascii=ascii2&isotype=allRetrieved 2026-09-19
- 252.083 Da
- Melting point
- 1,133 K
- Boiling point
- 1,269 K
- Discovered by
- Discovered
- 1952
Overview
All data
81 statements · 25% with external sources · numbers in brackets are citations
- Canonical SMILES
- [Es]
1
- [Es]
- Formula
- Es
1
- Es
- Part of
- period 7 follows: californium · followed by: fermium
- actinide follows: californium · followed by: fermium
- Ionization energy
- 6.3684 eV
1
Sources- 1.“NIST Atomic Spectra Database, Ionization Energies”physics.nist.gov/asdRetrieved 2026-09-18
- 6.3684 eV
- Electron configuration
- [Rn] 7s² 5f¹¹
1
- [Rn] 7s² 5f¹¹
- IPA transcription
- aɪnˈstaɪniəm language: English
- Oxidation state
- 3
- 2
- 4
On other databases
48 identifiers linking einsteinium across the web's reference databases
- Arab Encyclopedia concept ID879
- Arabic Ontology lexical concept ID151078458
- Australian Educational Vocabulary IDscot/3516
- BabelNet ID00006930n
- CAS Registry Number7429-92-7
- ChEBI ID33393
- ChemSpider ID22356
- DSSTOX compound identifierDTXCID90147796
- DSSTox substance IDDTXSID30225305
- Elhuyar ZTH ID022704
- Encyclopædia Britannica Online IDscience/einsteinium
- Encyclopædia Universalis IDeinsteinium
- Encyclopedia of China (Second Edition) ID190938
- Encyclopedia of China (Third Edition) ID (2026)2Cl4kV
- Encyclopedia of China (Third Edition) old ID (2021)185249
- Freebase ID/m/028bh5n
- GND ID4151415-4
- Gran Enciclopèdia Catalana IDeinsteini
- Gran Enciclopèdia Catalana ID (former scheme)0100433
- Great Norwegian Encyclopedia IDeinsteinium
- Great Russian Encyclopedia portal IDeinshteinii-9bd9d2
- Hrvatska enciklopedija IDeinsteinij
- InChIInChI=1S/Es
- InChIKeyCKBRQZNRCSJHFT-UHFFFAOYSA-N
- Interlingual Index IDi113929
- JSTOR topic ID (archived)einsteinium
- KBpedia IDEinsteinium
- Lex IDeinsteinium
- MeSH descriptor IDD004540
- MeSH tree codeD01.268.271.100.250
- Microsoft Academic ID (discontinued)551548478
- Namuwiki ID아인슈타이늄
- NicoNicoPedia word article IDアインスタイニウム
- OmegaWiki Defined Meaning157713
- Pixiv Encyclopedia IDアインスタイニウム
- PubChem CID23913
- Römpp online IDRD-05-00380
- ScienceDirect topic IDchemical-engineering/einsteinium
- SureChEMBL ID348965
- Treccani IDeinstenio
- Treccani's Dizionario delle Scienze Fisiche IDeinsteinio
- UMLS CUIC0013741
- UniChem compound ID1102040
- UNIIWV8XL34X3O
- USGS Thesaurus ID1445
- Vikidia article IDfr:Einsteinium
- WikiKids IDEinsteinium
- WordNet 3.1 Synset ID14661000-n