Created by

henri25
- Chemistry
- Atomic number
- Age 11-14
-
level: grade 7
- English
คำแนะนำของผู้เขียน
With the help of a periodic table, find the symbols and the atomic numbers of the given elements
Created by

henri25
คำแนะนำของผู้เขียน
With the help of a periodic table, find the symbols and the atomic numbers of the given elements