The predicted electron configuration of Helium 1s².
Helium is an element with atomic number of 2. it is located on the last group on the periodic table.Electron distribution into the energy levels or sublevels of atoms can be shown using electronic configurations.
Here, the two electrons in Helium fills the first energy level with s-sublevel first.
The maximum number of electrons in the sub-level is 2: this gives the 1s² configuration.
entropy is a measure of the randomness or the extent of disorder of a chemical process.
enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.
entropy is measured in joule per kelvin (jk⁻¹) whereas enthalpy is measured in joule per mole (jmol⁻¹)
entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.
in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.