An atom of magnesium has an atomic number of 12 and a mass number of 24. how many protons plus neutrons are in the nucleus

Identify two types of chemical bonding in the source of dietary potassium

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

What term is missing from the central region that describes hypotheses, theories, and laws? popular predictable mathematical falsifiable