This is true.
The reaction rates are affected by how often the particles collide.
Answer:
Model
Explanation:
A model of anything is something you make to represent it in it's physical world form
The formation of chemical bonds occurs due to the attractive forces between oppositely charged ions (ionic bonds) or by sharing of electrons (covalent bonds).
An atom having tendency of attracting a shared pair of electrons towards itself and this chemical property is said to Electronegativity .
Thus, the attractive forces which draws in surrounding electrons for chemical bonds is electronegativity.