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Francium has the lowest ionization energy. Think of it this way, France - Francium. France has never won a war and is considered to be weak. Francium is weak!

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Which element has a low ionization energy?

Potassium has a low ionization energy due to its large atomic size and one electron in its outermost shell, making it easier to remove that electron.


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Sodium and francium are both highly reactive metals due to their low ionization energy and strong desire to lose an electron to achieve a stable electron configuration. Francium is more reactive than sodium because it has a larger atomic radius and lower ionization energy, making it easier for francium to lose its outermost electron. This increased reactivity makes francium the most reactive metal among all the elements.


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Francium is considered the most metallic element. It is an alkali metal with the highest metallic character due to its low ionization energy and ability to readily lose electrons. However, francium is extremely rare and highly radioactive.


What element has the LOWEST Ionization Energy Electron Affinity and Electronegativity?

The element with the lowest ionization energy, electron affinity, and electronegativity is francium (Fr). Francium is an alkali metal located at the bottom of Group 1 in the periodic table, which gives it a very low tendency to attract electrons and hold onto its own. Its large atomic size and low effective nuclear charge contribute to these low values, making it the least electronegative element.


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