Lyijy

Kemiallinen merkki: Pb
Järjestysluku: 82
Kategoria: post-siirtymämetallit
Ryhmä: 14
Jakso: 6
Lohko: p
Moolimassa: 207,2 g/mol
Elektronia kuorilla: 2, 8, 18, 32, 18, 4
CAS-numero: 7439-92-1
Olomuoto: kiinteä
Tiheys: 11,34 kg/l (lähellä huoneenlämpöä)
Sulamispiste: 600,61 K (327,46 °C, 621,43 °F)
Kiehumispiste: 2022 K (1749 °C, 3180 °F)
Kiderakenne: cubic face centered
Hapetusluvut: 4, 2
Elektronegatiivisuus: 2,33 (Pauling-asteikko)
Nimen alkuperä: lot
Nimen tarkoitus: the German word for 'weight', as the element is very heavy, and is used in weights
Faktoja:
- in Latin, lead was called plumbum; in Rome, lead was used for plumbing
- is a soft, malleable poor metal, also considered to be one of the heavy metals
- has a bluish-white color when freshly cut, but tarnishes to a dull grayish color when ex
- has a shiny chrome-silver luster when melted into a liquid
- like mercury, another heavy metal, lead is a potent neurotoxin that accumulates in soft tissues and bone over time
- is used in building construction, lead-acid batteries, bullets and shot, weights, and is part of solder, pewter, fusible alloys and radiation shields
- has the highest atomic number of all stable elements, although the next element, bismuth, has a half-life so long (longer than the estimated age of the universe) it can be considered stable