calcium

Nghĩa (Tiếng Anh)

  1. (countable, uncountable) The chemical element (Symbol Ca), with an atomic number 20. It is a soft, silvery-white alkaline earth metal which occurs naturally as carbonate in limestone and as silicate in many rocks.
  2. (countable) An atom of this element.

Từ đồng nghĩa

Ca

atomic number 20

K line

liquid grease

calsium

H line

Tính thường xuyên

C2
Phát âm là (IPA)
/ˈkælsi.əm/
Từ nguyên (Tiếng Anh)

Coined by British chemist Humphry Davy in 1808, from Latin calx (“lime, limestone”) because it occurs in limestone. By surface analysis, calc- + -ium.

Notes

Sign in to write sticky notes