Solid at room temperature. They are used in making computers and electronic devices. Have properties of both metals and nonmetals. Which element in the periodic table is it?

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.

How is the atomic number of a nucleus changed by alpha decay

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.