Question

The isotopes of Madeupium (Ma) and their abundance in nature are shown below. Which is the most likely estimate of what the atomic mass is close to?

https://prnt.sc/v4v17k

Answer 1

75g?

Answer 2

my choices are 75g 76g and 74g

Answer 3

what

Answer 4

You dont get it? hey I gtg

Answer 5

let's dissect what the numbers given in the problem mean:

Ma-74, Ma-75, and Ma-76 are three different isotopes of our imaginary element Ma. Since they're isotopes, they all belong to the same element Ma but have different # of neutrons, and thus different atomic masses.

The numbers in parentheses give the relative abundance of each isotope. For instance, Ma-74 (74.333, 85%) means that 85% of all Ma atoms are Ma-74 atoms. The Ma-74 isotope has atomic mass 74.333.

As a major hint, the atoms overall most resemble the isotope with the greatest abundance

Answer 6

hello

Answer 7

so 76?

Answer 8

Not quite

Ma - 74 has the highest abundance at 85% which means overall ma atoms are closest in mass to ma - 74 (74.333 au)