Distance from the Sun for all of the planets and Orbital (Revolution) Period. In other words, how are these two related?

Which step in naming unsaturated hydrocarbons is used for alkenes but not alkynes

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

Which of these conditions most likely produces an unstable isotope?