What question there’s no question on here
An element is always trying to have 8 valence electrons. Each element must obtain a different number to come to a total of 8
Diffusion is the process of a substance spreading out to evenly fill its container or environment. Kinetic energy of particles of matter increases with an increase in temperature. More the kinetic energy in the particles, more is the rate of diffusion. so diffusion is faster in the summer!
hope this helps!
