Would SF, have polar or nonpolar covalent bonds and which atom will be partially negative? There is not enough information to answer this question. The molecule has polar covalent bonds and fluorine is partially negative. The molecule has polar covalent bonds and sulfur is partially negative. The molecule has nonpolar covalent bonds and fluorine is partially negative.

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Actinides

The elements in which the extra electron tends to enter the 5f-orbitals of (n–2)th main shell are considered 5f-block elements. They are also named actinides. Actinides include 15 elements, from atomic number 89 to 103.