Naturally occurring lithium consists of 90% \( ^7_3Li \text{ and 10% } ^6_3 Li. \) What is the relative atomic mass of lithium?

a

6

b

6.8

c

6.9

d

7

e

7.1

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Correct Option
c

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PeulthaiJackO
3 years ago

relative atomic mass = {[90/100] * 7} + {[10/100] * 6}

oluwat.me
2 years ago

no fullequation

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