The correct option is
A Solids
The explanation for the correct options:
Option (A): Solids
- Elements: A pure substance which is made up of only one kind of atom.
- The majority of elements are solids, with only 11 gases and six liquids.
- Sodium, Carbon(), and Aluminum() are examples of solid elements.
The explanation for the incorrect options:
Option(B): Liquids
- There are six liquid elements. Bromine(), Mercury(), Caesium(), Gallium(), Rubidium(), and Francium() are the elements involved.
Option(C): Gases
- At ordinary temperature and pressure, Hydrogen(), Nitrogen (), Oxygen (), Fluorine (), Chlorine () are gases.
Option(D): Mixture
- Elements combine with each other to form new compounds. So mixture is not possible for elements.
Hence, option (A) Solids is the correct answer.