According to the rate law, how do concentrations affect rate?

Explanation:

According to rate law, rate of a reaction depends upon the concentration of the species participating in the reaction.

For example,        

                            Rate =

Therefore, when there is increase in concentration of reactants then there will be more number of collisions. Due to this there will rapid formation of products. Hence, rate of reaction will increase.

Whereas decrease in concentration of reactants will decrease the rate of a reaction.

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.