Question

In known elements, the maximum number is of
A. Metals
B. Non-metals
C. Metalloids
D. Gases

Answer 1

Hint: Metals are the elements that lose electrons easily to form cations. Non-metals have an affinity toward electrons hence, gain electrons to form anions. Metalloids possess characteristics that are in between metals and nonmetals. Gases are a state of matter in which the particles are far apart from each other.

Complete Step by Step Solution:
- Metals have a shiny appearance and are good conductors of electricity and heat.
- These are generally ductile i.e., they can be made into wires, and malleable i.e., they can be beaten into thin sheets.
- These characteristics are the consequence of the metallic bond between the atoms or molecules of the metal.
- There are a total of 118 elements.
- 95 elements of the 118 in the periodic table are metals.
- The solid or liquid state of metals primarily is due to the ability of the metal atoms to readily lose their outermost shell electrons.
- For example, iron, uranium, sodium, aluminium, calcium, magnesium, etc.
- A nonmetal is a chemical element that commonly doesn't hold metallic properties.
- These span from colourless gases such as hydrogen to elements having increased melting point solids such as boron.
- The electrons in no metals are distinct from those in metals.
- Nonmetal atoms are intermediate to highly electronegative.
- These tend to draw electrons in chemical reactions and constitute acidic compounds.
- Out of the total 118 known elements, 23 may be considered nonmetals.
- Metalloids possess characteristics that are in between metals and nonmetals.
- The elements normally identified as metalloids are boron, silicon, germanium, arsenic, antimony, and tellurium.
- Gases are a state of matter which might be assembled by separate atoms, fundamental molecules put together from one type of atom, or compound molecules put together from a combination of atoms.
- A gas mixture, like air, includes a combination of pure gases.
- The gas particles remain far apart from each other. There are eleven gaseous elements.
- As there are 95 metals present, there are a maximum of metal elements present.
So, option A is correct.

Note: Typical metalloids maintain a metallic appearance, but are brittle and moderate conductors of electricity. They act mostly as nonmetals in chemical reactions. They can constitute alloys with metals. Most of their additional physical and chemical characteristics are intermediate metal and non-metal. Metalloids are utilised in alloys, catalysts, flame retardants, glasses, semiconductors, electronics, etc.,