4 different elements: Be (3x), Al (2x), Si (6x), O (18x)
Yes, an element can be represented as a chemical formula. Each element is identified by a unique chemical symbol, such as "H" for hydrogen or "O" for oxygen. Chemical formulas are used to represent the composition of compounds, which are combinations of elements.
Atoms of different elements unite during chemical changes to produce at least one chemical compound.
Chemical Name = Oxygen Chemical Symbol = O There is no chemical formula for elements.
The chemical formula of sodium nitrate NaNO3. This molecule contain Na, N and O.
Sodium chloride (NaCl) contain sodium and chlorine.
Now are known 118 chemical elements.
75 dissolved chemical elements
Now (22.08.2012) 118 chemical elements are known.
False; practically all the chemical elements have many uses.
there are loads!
The chemical formula is established after chemical analysis.
Today (July 2013) 118 chemical elements are known.
It's 118 chemical elements in the periodic table.
Now (2013) are considered as natural chemical elements 97 elements (including berkelium).
118 chemical elements are now in the periodic table.
Three elements are present: calcium, carbon and oxygen.
Xenon has the chemical symbol Xe.