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gogolik [260]
3 years ago
11

Please can I have help on question e as I’m really stuck.I promise I’ll give out brainiest

Chemistry
1 answer:
Natasha_Volkova [10]3 years ago
5 0

The relative atomic mass of element A : 6.075 u

<h3>Further explanation </h3>

The elements in nature have several types of isotopes

Isotopes are atoms whose no-atom has the same number of protons while still having a different number of neutrons.

So Isotopes are elements that have the same Atomic Number (Proton)

Atomic mass is the average atomic mass of all its isotopes

Mass atom X = mass isotope 1 . % + mass isotope 2.% ...

Element A

mass number of isotope 1 = 6 , percent : 92.5%

mass number of isotope 2 = 7, percent : 7.5

Relative atomic mass of element A

\tt = 92.5\%\times 6+7.5\%\times 7\\\\=5.55+0.525=6.075~u

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