Chapter 4, Problem 4.88AQAP

Interpretation Introduction

To determine: To find appropriate terms for the given definitions

Solutions:

1. Mass number
2. Halogens
3. Metalloids or semiconductors

Explanations:

1. The Mass number, also called as atomic mass number is the total number of protons and neutrons in the nucleus of the atom .It determines the mass of the atom. The mass number helps us to distinguish between isotopes of an element.
2. Group 7A elements are called as Halogens because of their tendency of forming salts. They include Fluorine, Chlorine, Bromine, Iodine and Astatine.
3. Metalloids or Semiconductors are the elements that are shiny and conduct heat. They have the properties of both metals & nonmetals. They are somewhat malleable & ductile. They are conductors, heat and electricity too, hence they find a huge application in semiconductor industry.

Conclusion:

Appropriate terms of the given definition have been found.