Which periodic family has a full outermost valence shell and rarely reacts with other elements? Alkali metals
Alkaline earth metals
Halogens
Noble gases

What is the mass of 8 moles of sodium atoms

What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots

|using the periodic tablewarm-upuse the periodic table in the tools bar to answer the following questions.what elemental classification does oxygen belongto? done