Atomic Structure - Isotopoes Flashcards
what are isotopes?
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.
What is identical and different with isotopes?
Differences:
Different masses (different relative isotopic mass)
similarities:
Have the SAME chemical properties because they have the same outer electron configuration
What is the relative molecular mass?
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.
How do you calculate the relative atomic mass of 2 isotopes? (example Chlorine)
Why would the relative atomic mass lean closer to one isotope than the other?
This is because there is simply much more abundance of the other isotope.
what does a mass spectroscopy show?
Mass spectroscopy shows the existence of isotopes and their relative abundances.
It will give the abundance in percentages.
e.g 37Cl and 35Cl
