Hello,
Last week I returned to school (I am now in Year 10) from the summer holidays. In chemistry we have been learning about The Periodic Table, Electron Shells and Atoms and Elements. We have science everyday apart from a Friday and I am really struggling to understand these topics. I spoke to my teacher and she said it might help if I make a glossary with definitions on keywords we have covered so far, to keep in my folder. I have made a list of keywords that I would like to include and have answered as much as I can. But there is still quite a lot I need definitions for; I have searched the internet countless times, but the meanings it has came up with are so confusing. So I guess what I am trying to ask is if you would please give me VERY SIMPLE definitions of the following:
- POSITIVE ION
- NEUTRAL ION
- NEGATIVE ION
- SUB-ATOMIC
- THE PERIODIC TABLE
- COMPOUND
- MIXTURE
- MASS NUMBER
- GROUPS
- PERIODS
- REACTIVE
- UNREACTIVE
- OUTER SHELL
- SHELL
- ELECTRONIC STRUCTURE
Thank you all so much in advance, I really appreciate any help at all you can give me.
- Clueless<3