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Understanding that some substances are elements and that some are compounds has been fundamental to many areas of human knowledge, not limited to chemistry and physics. Medicine, Biology, psychology and ecology have all benefited.

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12y ago

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WHAT CHEMICAL shows the relative number of atoms of each element in a compound.?

It is important to know the relative number of atoms of each element in a compound for the chemical composition.


What chemical refererence shows the relative number of atoms of each element in a compound?

It is important to know the relative number of atoms of each element in a compound for the chemical composition.


Is sulfur element compound or mixture?

element. Sulfur dioxide (SO2) is a compound


Is KCl an element or compound?

KCl is a compound not an element.


Is hellium element compound or a mixture?

First of all you have mispelled it as 'hellium' . It is 'HELIUM'. It is an element. It atomic No. is '2' , so therefore it is found in position number '2' in the Periodic Table, as 'He'. It is neither a compound nor a mixture. The chemical symbol for helium is 'He '. It's Atomic Mass is '4' It is compsed of 2 protons, 2 neutrons and two electrons. It is the MOST Noble(Inert) of all the elements. It does NOT react with anything. Therefore it exists 'monatomically' (single atoms). Its condensing point is 7 K ( - 266 oC) (Becomes a liquid) Its freezing point is 4 K . ( - 269 oC) (becomes a solid). The name 'helium' is from Classical Greece, and means 'from the Sun'(Helios), because two hydrogen atoms fuse together in the Sun , they form 'Helium'.


Is berylium a compound or an element?

Beryllium is an element. It is not a compound


Is cornstarch a compound or element?

cornstarch is a compound element.


Is an element a mixture a compound or a element?

Mixture


How do you test if something is an element or a compound?

if it dissolves its a compound if not its an element.


Is NO an element or a compound?

NO = Nitrous Oxide - compound No = Nobelium - element


Is carbon element compound mixture?

It is a compound Carbon is an element.


Is the salt is an element compound solution?

salt is a compound. it is not an element