1. Explain why a balloon loses pressure and falls when you let go of it into the sky.

Why do sodium and neon have vastly different chemical and physical properties despite having similar atomic masses?

Match the following items. 1. high-intensity bundle of energy being emitted from some decaying nuclei gamma ray 2. particle radiating from the nucleus of some atoms beta particle 3. negative particle identical to an electron but radiating from a decaying nucleus alpha particle

Elements that do not have full outer electron shells will donate, share, or take electrons from other atoms. choose the items that have the correct binary ionic formula.