Answer :
Final answer:
Lithium and Beryllium have the most similar electronegativities compared to Hydrogen, showcasing similar tendencies in bond formation.
Explanation:
Lithium and Beryllium have the most similar electronegativities compared to Hydrogen. Electronegativity (EN) refers to the tendency of an atom to attract a shared pair of electrons towards itself in a chemical bond. Elements with similar electronegativities show similar tendencies in bond formation.
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