The ionization energy increase from sodium to fluorine.
Na, sodium, should have the lowest first ionization energy of those four elements.
You are referring to the ionization enthalpy. The first ionization energy of sodium is the energy for the process Na(g) --> Na+(g) + e-(g).
Potassium
Rb
No it has high ionization potential compared to Na, K. This is because it has a very small atomic radius so there is more attraction of the nucleus to the electrons. So it is not easy to remove electrons from it when compared to Na and K.
The order is: Cl,S, Si, Al, Na.
The Pauling electronegativity and the first ionization energy increase from sodium to chlorine.
Na, sodium, should have the lowest first ionization energy of those four elements.
I'm assuming you're referring to the problem Na(g)+Cl(g) -> Na+(g)+Cl-(g)Since, ionization energy is basically the amount of energy it takes to dislodge one electron from a neutral atom, Cl has to dislodge one electron to stabilize NaThus,Na -> Na++e-
You are referring to the ionization enthalpy. The first ionization energy of sodium is the energy for the process Na(g) --> Na+(g) + e-(g).
Potassium
K (lowest) Na Li B N (highest)
Na, sodium
Rb has the least
Rb
NaCl-----------------Na+ + Cl-is a dissociation reaction.
Na(g) --> Na+(g) + e- First ionisation energy is always: X(g) --> X+(g) + e- with X being an element