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All atoms have two electrons in the first energy orgital, except for hydrogen (only has one).

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16y ago

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Between beryllium and barium which element will have the lower ionization energy?

Barium has more energy levels. So it has lesser ionization energy.


Which is more reactive sodium or barium?

sodium because it's the first group and first group are the most


What are the trends of First ionization energy of group 2?

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.


Which has the higher ionization energy ba or cs?

Ba, because it is lower on the periodic table


What is first ionization energy?

Sodium's first ionization energy is 495 kJ / mol.


What element has largest first ionization energy?

Helium has the highest ionization energy.


What is fluorine's ionization energy?

The first ionization energy is 1681 kJ/mol.


What elements has the highest first ionization energy?

Fluorine has the largest first ionization energy among the halogens.


What halogen element has the highest first ionization energy?

Fluorine has the largest first ionization energy among the halogens.


What is the energy needed to remove electrons from an atom called?

ionization potential energy. but remember the atom must be neutral .


What is ionization energy of boron?

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


What is einsteinium's ionization energy?

The ionization energy (first) of einsteinium is 619 kJ/mol.