All atoms have two electrons in the first energy orgital, except for hydrogen (only has one).
Barium has more energy levels. So it has lesser ionization energy.
sodium because it's the first group and first group are the most
The first ionization energy of Group 2 elements (alkaline earth metals) generally increases as you move up the group from barium (Ba) to beryllium (Be). This trend occurs because the atomic size decreases and effective nuclear charge increases, making it harder to remove an electron. Conversely, as you move down the group from beryllium to barium, the first ionization energy decreases due to increased atomic size and shielding effect, which makes it easier to remove the outermost electron.
The first ionization energy is 1681 kJ/mol.
ionization potential energy. but remember the atom must be neutral .
Barium has more energy levels. So it has lesser ionization energy.
sodium because it's the first group and first group are the most
The first ionization energy of Group 2 elements (alkaline earth metals) generally increases as you move up the group from barium (Ba) to beryllium (Be). This trend occurs because the atomic size decreases and effective nuclear charge increases, making it harder to remove an electron. Conversely, as you move down the group from beryllium to barium, the first ionization energy decreases due to increased atomic size and shielding effect, which makes it easier to remove the outermost electron.
Ba, because it is lower on the periodic table
Sodium's first ionization energy is 495 kJ / mol.
Helium has the highest ionization energy.
The first ionization energy is 1681 kJ/mol.
Fluorine has the largest first ionization energy among the halogens.
Fluorine has the largest first ionization energy among the halogens.
ionization potential energy. but remember the atom must be neutral .
Across a row on the periodic table ionization energy increases. Down a column, ionization energy decreases. --------------------------------------------------------- The first Ionization energy of Boron is 800.6 kJ mol-1
The ionization energy (first) of einsteinium is 619 kJ/mol.