About twice as large, which is not that much at the first ionization level. Still, Magnesium has a slightly larger, one proton nucleus and one more electron in that valence level to add to the energy needed to pill the first electron out of it's orbital. Electron shielding may have something to do with this also as the other valance electron of this 2+ element may shield the pulled electron.
No, strontium is not smaller than magnesium. Strontium is a soft silver-white element that is highly reactive chemically and has the symbol Sr and the atomic number 38.
This element is magnesium: Mg(7,6424 eV) and Sr (5,6949 eV).
No, its strontium
Strontium.
Helium has the highest ionization energy.
Chlorine is Cl, C is carbon. The first ionization energy of magnesium is less than that of chlorine.
First ionization energy of magnesium = 870/ kj/mol First ionization energy of phosphorous = 589 kj/mol So, magnesium has the larger ionization energy required to pull the first valance electron. Do you know why?
It takes more energy to knock off two electrons
sodium because it's the first group and first group are the most
Beryllium will have the highest. Down a group ionization energy decreases.
The first magnesium ionization energy is 737,7 kJ/mol.
strontium
Helium has the highest ionization energy.
potassium is greater in the second ionization energy.
Chlorine is Cl, C is carbon. The first ionization energy of magnesium is less than that of chlorine.
Caesium has a smaller ionization energy (375,7 kJ/mol) than strontium (549,5 kJ/mol).
Mg + Ionization energy ----> Mg2+ + 2e
Beryllium has greater ionization energy, with 899 kJ/mol versus Germanium's 762 kJ/mol. The general trend (most prominently displayed in the representative elements) in the periodic table is increasing ionization energy across a period, and decreasing ionization energy down a group.
Sodium
First ionization energy of magnesium = 870/ kj/mol First ionization energy of phosphorous = 589 kj/mol So, magnesium has the larger ionization energy required to pull the first valance electron. Do you know why?
It takes more energy to knock off two electrons