protons (3)
THEN
neutrons (4)
THEN
electrons (3)
:D
Fluorine need one electron. It needs one electron to complete its octet.
Covalent bonding is the bonding that is required to complete a transfer of an electron from one atom to another.
the one thing that gives an atom its identity is the mass number and the atomic number
an atom is just one thing. atoms are single molecules are plural
A magnesium atom would need 6 electrons to complete its highest occupied electron shell. In practice, a magnesium atom almost never does this, because the energy required would be too great. Instead, the magnesium atom transfers 2 electrons to one or more atom that are more electronegative than magnesium and thereby forms a magnesium ion with an electrical charge of +2. In this ion, the highest occupied shell of a magnesium atom is completely empty of electrons.
One.
One
Yes. One carbon atom is bonded to one oxygen atom by two covalent bonds and one coordinate covalent/dative bond, to form a complete molecule.
the one thing that gives an atom its identity is the mass number and the atomic number
You need to complete the requirements to graduate. High school is not like college where you study one thing.
There is nothing "fixed" or "written in stone" about an atom with 13 protons except one thing. If an atom with 13 protons is a neutral atom, it will have 13 electrons. But it might have more or less if it is ionized. The only thing that is certain about an atom with 13 protons, which is its atomic number, is that it is an atom of aluminum.
A thing which is made up of more than one type of atom. Something which is made up of just one atom is called an element.