Metals usually form what type of ions?

Metals form positive ions, or cations.

Atoms achieve this type of configuration by gaining or losing electrons depending on the number of electrons in their outermost energy levels called valence electrons.

Explanation:

the molecules move in straight line until they collide with each other or with the walls of the container. collisions are perfectly elastic; when two molecules collide, they change their directions and kinetic energies, but the total kinetic energy is conserved.

explanation:

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates