Grading and memorizing

• Most of the weigh of an atom i concentrated in the nucleus of an atom. See the properties and markings on each particle on p. 107.

The list of elements: 

• Learn the list by heart. You can do it by playing the app (Table of elements) or listening to the element- song or just by reading. Just do it!

• If you want, you can upload the app Chemistry Lab on your equipment (not a demand).

HOMEWORK: 

1. Signature of your parents to the list of gradings and your aim/goal.
2. Learn the elements.
3. Memorize the construction of an atom as well as how to write chemistry. p. 106,197,49