Answer:
The mass number of an atom is its total number of protons and neutrons. Atoms of different elements usually have different mass numbers , but they can be the same. For example, the mass number of argon atoms and calcium atoms can both be 40.
Explanation:
metals (left side of periodic table) become positive ions so calcium would be the answer
The answer to your question is Letter C <-- ANSWER
Steroid is a molecule made up of four carbon rings with other atoms bonded to those rings.
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Answer:
breakdown of a substance by bacteria, yeasts, or other microorganisms
Explanation:
