what is a chemical formula? what rule should be followed while writing a chemical formula?
briefly describe Rutherford's experiments give observation of their experiments.
Answers
Answer:
The rule for writing chemical formula are: -Firstly, write the symbols with positive charge valency first. - Secondly, write the valency of each atom on the top of its symbol. - Thirdly, divide the valency number by their highest common factor ignore the positive or negative radicle.
A chemical formula tells us the number of atoms of each element in a compound. It contains the symbols of the atoms of the elements present in the compound as well as how many there are for each element in the form of subscripts
Each element is given its own chemical symbol, like H for hydrogen or O for oxygen. Chemical symbols are usually one or two letters long. Every chemical symbol starts with a capital letter, with the second letter written in lower case. For example, Mg is the correct symbol for magnesium, but mg, mG and MG are wrong