Ioniz. energy is the amount of energy it takes to remove one electron from an atom. Lithium has one too many electrons before it reaches the highly stable octet of the immediately previous noble gas- so it gives it up really easily. Carbon is farther away from the octet in this manner, so it will take more energy. Also, lithium is a metal and metals tend to lose electrons. Carbon, a nonmetal, tends to gain electrons.
Lithium
lithium
Ionization energy represents the energy required to remove electrons from an atom. The first and second ionization energies are relatively small because the lectrons must be removed from the 2s orbital. For the third ionization energy the electron must be removed from the 1s orbital which has less energy than the 2s, and so requires much more energy to be removed.
Lithium, carbon, oxygen, and fluorine are all reactive elements, which means that they want to bond with other elements to form compounds. Carbon and oxygen together can even covalently bond together to form the compound CO2 (carbon dioxide). Lithium and fluorine can ionically bond because lithium needs to lose its single valence electron to take away its unnecessary second energy shell to finish with a single full energy shell, while fluorine needs to gain one more valence electron to make its last energy shell full, forming the compound LiF (lithium fluoride).
Ionization energy decrease down the group.So in halogens,Fluorine has highest 1st ionization energy.
lithium
Carbon has the highest ionization energy
T he smallest first ionization energyis for lithium.
Lithium
lithium
Lithium need more ionization energy.
It is easier to lose electrons from a cesium atom than from a lithium atom because cesium has a larger atomic size and low effective nuclear charge, making it easier for outermost electrons to be removed. In contrast, lithium has a smaller atomic size and higher effective nuclear charge, resulting in stronger attraction to its electrons and making them harder to remove.
The first ionization energy for carbon is 1 086,5 kJ/mol. The first ionization energy for oxygen is 1 319,9 kJ/mol.
Sodium is more reactive then lithium because Na has a lower ionization energy.
As you go down the group (any group), ionization energy decreases. So in terms of ionization energy, for the alkali metals, Lithium > Sodium > Potassium > Rubidium > Caesium > Francium
Cesium would undergo the least exothermic reaction with chlorine among the alkali metals. This is because cesium is the most reactive alkali metal, so it requires more energy to form a compound with chlorine compared to the other alkali metals.
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.