Atom - CORRECT ANSWER - Smallest unit of chemical elements made
up of protons neutrons and electrons
atomic mass - CORRECT ANSWER - number of protons plus number of
neutrons
Atomic number - CORRECT ANSWER - number of protons
covalent bond - CORRECT ANSWER - formed when the difference in
electronegativity between A atoms is equal they then share electrons
Hydrogen bond - CORRECT ANSWER - Weak bond interaction
Between two molecules
Ionic bond - CORRECT ANSWER - formed when two oppositely
charged ions attract
Polar covalent bond - CORRECT ANSWER - when electrons are
unequally shared between Atoms because they have different
electronegativities