no sulfur is practically a gas
Na, sodium
Firstly, you have to be familiar with the electron orbitals and how they fill. If you consider sulfur, you will notice that there are two electrons in its px orbital but only one in each of its py and pz orbitals. The two electrons in the px orbital are at different energies( one is higher than the other) and thus tend to repel each other. This repulsion causes the electrons to lose energy due to the fact that they are moving away from the nucleus and thus their attraction is lower. Therefore, the ionization energy decreases.
Sulfur
iodine has lower electronegativity than chlorine
the further one moves down the periods, the melting point decreases. since sillicon is placed before chlorine, chlorine has lower melting point.
The first level ionization energy oif aluminium is 577,5 kJ/mol.All alkali metals have lower values for the ionization energy.
Barium has more energy levels. So it has lesser ionization energy.
As an example potassium has a lower first ionization energy than aluminum (Al).
As an example potassium has a lower first ionization energy than aluminum (Al).
The energy required to remove electron from atom are called ionization energy. Larger atom or molecule have lower ionization energy and molecule have higher ionization energy.
ionization energies of mg is less than chlorine because chlorine requires only one electron to complete its octet so it will not prefer to loose its electron morover its electronegativity is also higher and it is of smaller size than mg so electtron removal is difficult
K
Potassium
Ionization energy generally increases across a period as a result of a higher nuclear charge, however there are some exceptions such as Boron which has a lower ionization energy than Beryllium (because it is in a P orbital), and Oxygen which has a lower ionization energy than nitrogen (Because ionization decreases the electron electron repulsion in its orbitals).
Lower ionization energy would be associated with the larger atom, as the outer most electrons would be further from the nucleus, and not held as tightly.
The ionization energy is the energy needed to extract an electron from an atom; first ionization energy, second, third etc. can be measured. Reactive chemical elements have lower ionization energy.The first ionization energy for silicon is 786,5 kJ/mol.The first ionization energy for carbon is 1 086,5 kJ/mol.
Na, sodium