scandium is a transition metal and shows a valency of 3.
Ozone is made up of 3 atoms of Oxygen and present in stratosphere of our atmosphere. It prevents us from "Ultraviolet rays" of Sunlight so it is an important form of oxygen or us
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It would be potassium chloride or kcl
Answer:
Molecule.
Explanation:
carbon and fluorine. Based on the bonding, a unit of carbon dioxideis described as a molecule.
Valence electrons are the electrons in the outermost shell of an element on the periodic table. Atoms want to be able to have a full outer shell and they can share or trade electrons in order to achieve this. Valence electrons are also super super important in chemical reactions. The number of valence electrons determines what group that specific atom or element is in on the periodic table. This affects the reactivity of the element.
