Atomic Structure - Isotopoes Flashcards

1
Q

what are isotopes?

A

Atoms with same number of protons but different number of neutrons
They are the same element with same Atomic Number but a different mass number.

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2
Q

What is identical and different with isotopes?

A

Differences:
Different masses (different relative isotopic mass)

similarities:
Have the SAME chemical properties because they have the same outer electron configuration

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3
Q

What is the relative molecular mass?

A

The relative atomic mass of an element is the Average mass of its atoms, compared to 1/12th the mass of a carbon-12 atom.

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3
Q

How do you calculate the relative atomic mass of 2 isotopes? (example Chlorine)

A
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4
Q

Why would the relative atomic mass lean closer to one isotope than the other?

A

This is because there is simply much more abundance of the other isotope.

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5
Q

what does a mass spectroscopy show?

A

Mass spectroscopy shows the existence of isotopes and their relative abundances.
It will give the abundance in percentages.
e.g 37Cl and 35Cl

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