There are 9 atoms present in one molecule of Mg(NO3)2.
The compound name for Mg(NO3)2 is magnesium nitrate.
This is a 'Sngle Displacement' reaction ( A + BC --> AC + B
An atom of a chemical element contain only atom.
9
13
There is one atom in a hydrogen atom
It varies on the element of the atom.
The number of protons in the nucleus of an atom
Generally how many protons it has, therefore what type of atom it is (i.e. carbon, hydrogen etc.)
A nitrogen atom has seven electrons.
The neutral atom of phosphorus has 15 electrons in the atom.
There are 18 protons in an Aragon atom.