All matter is made of atoms. Which drawing shows the correct relationships between the three basic parts of an atom?

Which best describes why nh4+ can form an ionic bond with cl-?

In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li