PLEASE HELP 15 POINTS ONE QUESTION
1 answer:
Answer: 12 Protons, 12 electrons and 16 neutrons. The number of protons and electrons always stays the same, but the neutrons is the mass-protons. In this case, 28-12=16 neutrons.
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Compounds are substances that are formed when two or more elements chemically combine. They are made up of molecules that contain different atoms from different elements. For example, KCl is a compound that is made up of two atoms, one potassium atom and one chloride atom. Unlike elements that are made of similar atoms, compounds contains atoms that are not similar from different elements.
Answer:
Answer is on the foto.
Explanation:
Complete Lewis formula is on picture 2
Elements that are in the same columns (vertical) are chemically similar.
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