Which of the following statements about metallic bonds is false
a. the resulting compound has low and melting and boiling points.
b. the resulting compound has a shiny surface
c. the resulting compound is a good conductor or electricity
d. the resulting compound cannot be dissolved in water.
- its a! they have high melting/boiling points.

The resulting compound has low and melting and boiling points.

Explanation:

Metallic bond: It is the type of bond (chemical) that hold the atoms of metal together, it forms when the electrostatic attractive force present between conduction electron and fixed positive charge metal atoms. So, metal atoms have high melting and boiling point. This means that they take lot of energy to overcome these Forces (electrostatic) during melting and boiling time.

It also describes as the sharing of free electrons between the structure of positively charged ions.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.