Answer:
Chemical Compound
Step-by-step explanation:
Chemical compound is formed when two or more atoms either from the same element or from different element join together through ionic, covalent bond, hydrogen or any other physical or chemical bond
for Instance -
Atoms of hydrogen combines with oxygen to form water through covalent bonding (sharing of electrons) between H and O.
Atoms of sodium combines with chlorine to produce sodium chloride through ionic bond (complete transfer of electron) between Na and Cl.