atom activity
Hydrogen and Helium atom models:
1) The mass of an atom is in the nucleus.
2) The electron cloud contributes the most to a volume of an atom.
3) The overall charge of a nucleus is positive because there are protons.
4) The overall charge of an electron cloud is negative because of electrons.
5) Opposites charges attract, and since the overall charge of the nucleus is positive and the charge of the electron cloud is negative, the two attract to hold the atom together.
2) The electron cloud contributes the most to a volume of an atom.
3) The overall charge of a nucleus is positive because there are protons.
4) The overall charge of an electron cloud is negative because of electrons.
5) Opposites charges attract, and since the overall charge of the nucleus is positive and the charge of the electron cloud is negative, the two attract to hold the atom together.
Part 2: