During the reaction the amount of energy given out is 780 kJ/mol. The F-F bond energy is 160 kJ / mol.
Use this information to determine the bond energy, in kJ/mol of one S-F bond in SF4

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.