Periodic Table Web Elements Cecilia Aceves 1 st

Periodic Table Web Elements Cecilia Aceves 1 st Hour

Hydrogen • Hydrogen was discovered by Henry Cavendish at 1766 in London, England. Origin of name: from the Greek words "hydro" and "genes" meaning "water" and "generator". • Atomic number: 1 • Atomic weight: 1. 00794 (7)

Scandium • Scandium was discovered by Lars Fredrik Nilson at 1879 in Sweden. Origin of name: from the Latin word "Scandia" meaning "Scandinavia". • Atomic number: 21 • Atomic weight: 44. 955912 (6)

Boron • Boron was discovered by Sir Humphrey Davy, Joseph-Louis Gay-Lussac, L. J. Th&�nard at 1808 in England, France. Origin of name: from the Arabic word "buraq" and the Persian word "burah". • CAS Registry ID: 7440 -42 -8 • Atomic weight: 10. 811 (7)

Lanthanum • Lanthanum was discovered by Carl Gustaf Mosander at 1839 in Sweden. Origin of name: from the Greek word "lanthanein" meaning "to lie hidden". • Atomic number: 57 • Classification: Metallic

Lithium • Lithium was discovered by Johan August Arfvedson at 1817 in Stockholm, Sweden. Origin of name: from the Greek word "lithos" meaning "stone", apparently because it was discovered from a mineral source whereas the other two common Group 1 elements, sodium and potassium, were discovered from plant sources. . • Group name: Alkali metal • Standard state: solid at 298 K

Yttrium • Yttrium was discovered by Johann Gadolin at 1794 in Finland. Origin of name: named after the village of "Ytterby" near Vaxholm in Sweden. • Atomic number: 39 • CAS Registry ID: 7440 -65 -5

Aluminium • Aluminium was discovered by Hans Christian Oersted at 1825 in Denmark. Origin of name: from the Latin word "alumen" meaning "alum". • Standard state: solid at 298 K • Classification: Metallic

Actinium • Actinium was discovered by Andre Debierne at 1899 in France. Origin of name: from the Greek word "aktinos" meaning "ray". • Atomic number: 89 • Block in periodic table: f-block