Helium will not bond with anything. Platinum will bond only with fluorine (and under special conditions). So, helium and oxygen will not bond, platinum and silicon will not bond, etc.
form covalent bond
form covalent bond
It makes a molecule.
Yes, a covalent bond involve sharing of electrons between two atoms.
The distance between the nuclei of two atoms that are chemically bonded is called the bond length.
Gold rarely bonds, but can bond with halogens
The term molecule or compound best defines two or more atoms joined by a chemical bond.
Yes, hydrogen and oxygen atoms form covalent bonds when they chemically combine.
Strongest bond that forms between 2 atoms.
The bond between oxygen atoms is considered as covalent.
It depends on the elements used. e.g. Burn solid, black carbon in oxygen and you get CO2. The C & O have both changed chemically as they share electrons. The solid carbon has now become a gas and is no longer black. That's a physical change, brought about chemically.
In general, when a chemical bond forms between two or more atoms, it creates a molecule.