Arsenikki

Kemiallinen merkki: As
Järjestysluku: 33
Kategoria: puolimetallit
Ryhmä: 15
Jakso: 4
Lohko: p
Moolimassa: 74,92160 g/mol
Elektronia kuorilla: 2, 8, 8, 5
CAS-numero: 7440-38-2
Olomuoto: kiinteä
Tiheys: 5,727 kg/l (lähellä huoneenlämpöä)
Sulamispiste: 1090 K (817 °C, 1503 °F)
Kiehumispiste: 887 K (617 °C, 1137 °F)
Kiderakenne: rhombohedral
Hapetusluvut: 5, 3, 1, -3
Elektronegatiivisuus: 2,18 (Pauling-asteikko)
Nimen alkuperä: zarnikh
Nimen tarkoitus: the Persian word for 'yellow orpiment' (mineral)
Faktoja:
- is a notoriously poisonous metalloid that has many allotropic forms: yellow (molecular non- metallic) and several black and grey forms (metalloids) are a few that are seen
- arsenic and its compounds are used as pesticides, herbicides, inse
- when ingested, arsenic disrupts ATP production through several mechanisms
- elemental arsenic and arsenic compounds are classified as 'toxic' and 'dangerous for the environment' in the European Union
- is more commonly found as arsenide and a
- a very popular murder chemical