The +3 on aluminum refers to its oxidation number. The oxidation number of an atom is the total number of electrons that an atom either gains or loses in order to form a chemical bond with another atom. In this case, aluminum needs three valence electrons to form an octet (to have a total of eight valence electrons). If aluminum were to react with phosphate, PO4-3, the two would share their valence electrons and balance out, forming AlPO4.
There are 3 valence electrons in an atom of aluminium.
The chemical formula of aluminium chloride is AlCl3; the ratio Al/Cl is 1/3.
The valency of AlCl3 is 3. This is because aluminium (Al) has a valency of +3 and each chlorine atom (Cl) has a valency of -1, so it takes 3 chlorine atoms to balance the charge of one aluminium atom.
Aluminium is a metal with a +3 charge, and chlorine is a non-metal with a -1 charge. To balance the charges in a compound, three chlorine atoms are needed for every one aluminium atom. This results in the chemical formula AlCl3 for aluminium chloride.
The correct formula is AlCl3
There are 3 valence electrons in an atom of aluminium.
The chemical formula of aluminium chloride is AlCl3; the ratio Al/Cl is 1/3.
The valency of AlCl3 is 3. This is because aluminium (Al) has a valency of +3 and each chlorine atom (Cl) has a valency of -1, so it takes 3 chlorine atoms to balance the charge of one aluminium atom.
It is an atom.
It is an atom.
The atom of aluminium is neutral.
It is uniatomic
13
It would become an Aluminum ion that has a 3+ charge
Silicon has 4 fewer electrons than aluminium. Aluminium has 13 electrons, while silicon has 9.
The neutral atom of aluminium has 13 electrons.
Aluminium chloride (AlCl3) has one aluminium atom (Al) and three chlorine atoms (Cl). The chemical formula AlCl3 indicates that there is one aluminium atom bonded to three chlorine atoms in the compound.