kovalentsele
Kovalentsele is a term that appears to be a misspelling or a non-standard term. It is likely that the intended word is "kovalent" or "kovalentni," which are Slavic language words for "covalent." In chemistry, a covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding. Covalent bonding is the most common type of chemical bond.
If "kovalentsele" was intended to be a specific compound or a more complex term, further clarification would