Chapter 3, Problem 43A

Interpretation Introduction

Interpretation :

Three examples of gaseous elements existing as diatomic molecules and single atoms need to be given.

Concept Introduction :

The periodic table is the arrangements of the different elements according to the increasing atomic number of the element. The periodic table has placed the elements in row and columns. The horizontal rows are termed as periods and vertical columns are termed as groups.

Answer to Problem 43A

Hydrogen, oxygen, nitrogen are three example of the gaseous elements that exist in diatomic molecules.

Helium, neon, argon are three examples of the gaseous elements that exist as a single atom.

Explanation of Solution

In the periodic table, elements are classified as metal, non-metal, and metalloids. These are found in solid, liquid, and gaseous states. The elements can exist in a gaseous state as diatomic molecules as well as a single atom. The elements in the form of a gaseous state placed in the periodic table. These gaseous elements are may be diatomic molecules such as oxygen, nitrogen, etc or single-atom such as noble gases.

Conclusion

Thus, hydrogen, oxygen, nitrogen are three example of the gaseous elements that exist in diatomic molecules.

Helium, neon, argon are three examples of the gaseous elements that exist as a single atom.