What do we call the connection between atoms?​

Chemical bonds are the connections between atoms in a molecule. These bonds include both strong intramolecular interactions, such as covalent and ionic bonds. They are related to weaker intermolecular forces, such as dipole-dipole interactions, the London dispersion forces, and hydrogen bonding.

"the periodic table is arranged in order of atomic number."

i think its 5049.

i hope this !