Are two atoms of the same element identical? Please answer this and I will mark the best answer as the brainiest answer.

No

Explanation:

Are two atoms of the same element identical?

No they are not, for multiple reasons,

1) Heisenberg uncertainty principle: Electrons don't have a definite position, and direction of motion, at the same time. So we can only know of the two. Therefore the atoms are not identical in terms of the location or direction of motion at any fixed point in time.

2) Isotopes, while the number of protons in the nucleus determine the element, atoms of the same element can have different numbers of neutrons in their nuclei.

3) Electrons again, atoms can exist in energized states, therefore we may have a different number of electrons

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :