romhaybirhane94 romhaybirhane94

23-06-2020
Chemistry

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boron has two naturally occurring isotopes .there are 10 b(20%)and 11b(80%).what is the average atomic mass of boron

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chmvijayouls6d chmvijayouls6d

23-06-2020

Answer:

Explanation:

Average Atomic mass of any element =[ ∑ Abundance* mass of element] /100

= 10*20 +11*80 /100

= .........

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