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Atom are the basic units of matter and the structure of elements. atom…
Atom are the basic units of matter and the structure of elements. atom comes from the greek word that means invisible
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chemical symbols are written whith capital letter if they are just one letter and if they are two letters the first letter is capital and the second one is lower case.
the symbol of Iron is I, Magnesium is Mg, Calcium Ca, Lithium Li, Sodium Na, Gold Au Potassium K, Silver Ag, Mercury Hg
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a fire triangle is a model that shows the components of fire if one of the elements is removed the fire extinguishes the 3 elements are fuel, heat, oxygen.