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Elements are represented by symbols which are based on their names, sometimes the symbols are based on old versons of their names... examples of element symbols are...
Oxygen = O
Helium = He
Nitrogen = N
Sodium = Na (its old name was Natrium)
Gold = Au (its old name was Aurum)
Compounds are represented by the sumbols and proportions of the elements they contain, examples are...
NaCl = Sodium Chloride (salt), one atom of Sodium plus one atom of Chlorine.
H2O = Water, two atoms of Hydrogen plus one atom of Oxygen.
HNO3 = Nitric Acid, one atom of Hydrogen plus one atom of Nitrogen plus three atoms of Oxygen.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoThe chemical formula.
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A chemical formula is an expression used to represent?
Chemical formulas are a shorthand way to represent chemical compounds. For example, CO2 is quicker to write than carbon dioxide.
What do chemists use to represent elements and compounds?
Scientists use symbols to represent elements and compounds. The symbols of a chemical element are abbreviations that are used to denote a chemical element. Typically, they are one or two-letters long with the first letter (only) capitalised; temporary names are three-letters long. !
What are non-metals in the nitrogen family?
elements and compounds
What is the difference from an element from a compound?
Compounds are made of elements. Elements are the smallest units of the compounds. Elements are bond to make compounds.
What compounds form the element gadolinium and how are they used?
Compounds do not form elements. Elements form compounds.
Why do some elements have symbls that are different then the letters in there name?
It is greek name numbnuts!
What do chemicals symbols and formula represent respectively?
Respectively they represent elements and compounds.
What represent compound?
the combination of elements
Do oxygen and hydrogen represent the same compound?
No. Hydrogen and oxygen are elements, not compounds. They are not the same.
A chemical formula is an expression used to represent?
Chemical formulas are a shorthand way to represent chemical compounds. For example, CO2 is quicker to write than carbon dioxide.
What are math symbls?
+ - * / () {} [] #(?) $ % = etc.
What are the differences between atoms and compounds?
both are pure substances, but atoms represent the smallest bits of elements. compounds are chemically combined atoms, molecules represent the smallest bits of compounds. atoms cannot be broken down into simpler substances, compounds can be broken down into atoms.
How do elements relate to compounds?
Chemical compounds are formed from chemical elements.
What does a formula tell you?
Chemical formulas are used to represent chemical compounds. It shows the component elements of the compound. Also it shows the ratios of the component elements.
What do chemists use to represent elements and compounds?
Scientists use symbols to represent elements and compounds. The symbols of a chemical element are abbreviations that are used to denote a chemical element. Typically, they are one or two-letters long with the first letter (only) capitalised; temporary names are three-letters long. !
What are non-metals in the nitrogen family?
elements and compounds
What are the two type of substances?
Elements and compounds
