KWL
Chemistry: the study of matter and dealing with the composition of substances and their properties and reactions.
What I know:
1. You add the electrons to find the element
2. There can only be 2,8 and 16 in the first, second and third layers
3. Protons are positive neutrons are zero and electrons are negative
4. Protons and electrons ALWAYS need to be even
What I want to know:
1. Why do atoms undergo physical changes?
2. Who invented the periodic table?
3. How do atoms multiply?
4. Can you see atoms with a microscope?What I Learned:
1. Atoms cannot be seen by microscopes
2. Atomic number is how many electrons and protons3. Atomic mass-protons= number of neutrons
4. Valence electrons show how many can be shared
5. Undergo physical changes because they bond
6. Many people who discovered the elements
7. Bond by sharing or taking
8. MUCH MORE :)
Hi Katja,
ReplyDeleteAlthough this format was okay for the beginning of the unit, I would like you to write a full reflection. Please take the things that you learned and understand and put them into a paragraph format. Also, please answer this question for me. How does the study of chemistry allow us to understand the effects of human inventions and industry on the Earth?