https://padlet.com/mahdi_m/hcdii4crg99o en-us 2018-02-06 18:45:07 UTC 2025-11-15 14:19:03 UTC hello@padlet.com mahdi_m https://padlet.com/mahdi_m/hcdii4crg99o/wish/228787237 discovered in 1879 by Lars Fredrick Nilson
https://en.wikipedia.org/wiki/Scandium]]> 2018-02-06 18:47:27 UTC https://padlet.com/mahdi_m/hcdii4crg99o/wish/228787237 mahdi_m https://padlet.com/mahdi_m/hcdii4crg99o/wish/228787420 Scandium is a chemical element with symbol Sc and atomic number 21.
atomic mass:
44.955912 u ± 0.000006 u
symbol:sc
https://en.wikipedia.org/wiki/Scandium]]> 2018-02-06 18:47:42 UTC https://padlet.com/mahdi_m/hcdii4crg99o/wish/228787420 mahdi_m https://padlet.com/mahdi_m/hcdii4crg99o/wish/228787543 Scandium is used in aluminum-scandium alloys for aerospace industry components and for sports equipment such as bicycle frames, fishing rods, golf iron shafts and baseball bats.
The radioactive isotope ⁴⁵Sc is used in oil refineries as a tracing agent.
Very dilute scandium sulfate is used to improve the germination of seeds such as corn, peas and wheat.
https://www.chemicool.com/elements/scandium.html]]> 2018-02-06 18:47:53 UTC https://padlet.com/mahdi_m/hcdii4crg99o/wish/228787543 mahdi_m https://padlet.com/mahdi_m/hcdii4crg99o/wish/228787917 physical: Scandium metal is a silvery-white solid with a slight pink or yellow tint when exposed to air. It has a melting point  of 1,538°C (2,800°F) and a boiling point  of about 2,700°C (4,900°F). Its density is 2.99 grams per cubic centimeter.
http://www.chemistryexplained.com/elements/P-T/Scandium.html]]> 2018-02-06 18:48:25 UTC https://padlet.com/mahdi_m/hcdii4crg99o/wish/228787917 mahdi_m https://padlet.com/mahdi_m/hcdii4crg99o/wish/228794153 2018-02-06 18:57:32 UTC https://padlet.com/mahdi_m/hcdii4crg99o/wish/228794153 mahdi_m https://padlet.com/mahdi_m/hcdii4crg99o/wish/228804397 2018-02-06 19:12:10 UTC https://padlet.com/mahdi_m/hcdii4crg99o/wish/228804397 mahdi_m https://padlet.com/mahdi_m/hcdii4crg99o/wish/228804559 2018-02-06 19:12:24 UTC https://padlet.com/mahdi_m/hcdii4crg99o/wish/228804559 mahdi_m https://padlet.com/mahdi_m/hcdii4crg99o/wish/228804760 2018-02-06 19:12:39 UTC https://padlet.com/mahdi_m/hcdii4crg99o/wish/228804760