Question

element lithium has atomic number 6.9 and 3 and has two isotopes of masses 6 and 4 calculate the ratio of the two isotopes​

Answer 1

Problem

Naturally occurring bromine consists of two isotopes, 79Br and 81Br with isotopic masses of 78.9183 and 80.9163, respectively. Given that the observed atomic mass of bromine is 79.904, calculate the percent abundance of 79Br and 81Br in naturally occurring bromine.

Isotopes are atoms with different atomic masses which have the same atomic number. The atoms of different isotopes are atoms of the same chemical element; they differ in the number of neutrons in the nucleus.

Answer 2

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