Answer:
1CALSIUM
atomic numer=20
symbol=Ca
name=Calsium
electronic configuration=(Ar)4s²
atomic weight=40.078
oxidation state (valenve)=+2
melting point (⁰C)=839
boiling point (⁰C)=1484
density (g/cm³)=1.55
electronegativity=1.0
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Answer:
1CALSIUM
atomic numer=20
symbol=Ca
name=Calsium
electronic configuration=(Ar)4s²
atomic weight=40.078
oxidation state (valenve)=+2
melting point (⁰C)=839
boiling point (⁰C)=1484
density (g/cm³)=1.55
electronegativity=1.0