How do electrons in the same atom differ?

Electrons in the same atom differ because they can have different quantum numbers

Atoms consist of sub-particles: electrons, protons, and neutrons

The proton is positively charged (+1), the electron is negatively charged (-1). and neutrons not charged (neutral)

The electron configuration shows the energy level in the atom

The further away from the core, the higher the energy level

In the electron configuration we follow 3 rules:

Each orbital consists of 4 quantum numbers

From Pauli's rule, an electron can have 3 same but different quantum numbers in ms (quantum spin)

For example in the 1s orbital, then the quantum value of the 2 electrons that occupy the orbital:

Therefore, in one orbital it is not allowed to fill more than 2 electrons because the quantum numbers will be the same

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.