How do metallic bonds differ from covalent and ionic bonds

Ionic bonding occurs when transfer of electrons takes place. The ions then attract each other through electrostatic forces of attraction as they are oppositely charged. Covalent bonding occurs when atoms/molecules share pairs of electrons . metallic bonding is bonding that occurs in metals .

The answer to this problem is. 67

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .