keiannajames1 keiannajames1

04-04-2018
Mathematics

contestada

The atomic weight of an unknown element,in atomic mass units (amu),is approximately 20% less than that of calcium. The atomic weight of calcium is 40 amu. What is the approximate weight,in amu,of the unknown element?

Respuesta :

Belfium Belfium

04-04-2018

amu of unknown element = 40 - (20% * 40)
= 40 - 8
= 38 amu

therefore, the approximate weight of the unknown element is 38 amu.

hope this helps.

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huyentran520 huyentran520

04-04-2018

I don't know what ur talking about I'm in 6th grade LOL

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