Israeli Football Fans Attacked In...
News1 min ago
I have this chemstry homework but I have never done this sort of quesiton before and I was hpoing you could helf me. This is it:
Element X has 2 isotopes. One istope has a mass number of 26 and an abundance of 80%. The other isotope has a mass number 28.
(a) What is meane by the term isotope?
(b) Calculate the Relative Atomic Mass of element X.
No best answer has yet been selected by andymacdcfc. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.a)isotopes are forms of an element with the same atomic number but different mass numbers,,,OR.. atoms with the same number of protons but different numbers of neutrons
b) of every hundred atoms 80 have mass 26, and the other 20 have mass 28
total mass is (80 x 26) + (20 x 28) = 2080 + 560 = 2640
R.A.M. is average mass, i.e. 2640/100 = 26.4