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How was your chemitry paper?

At first, I thought like the way you did, but it appears that there is only one naturally occurring isotope of aluminium, that is aluminium-27. There are a number of isotopes of aluminium but by far, the naturally occurring isotope of aluminium is Al-27. Isotopes are atoms of same element with...
- Sky666
- Post #27
- Oct 17, 2012
- Forum: O-Levels / GCSEs / IGCSE

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