Question

Find the number of metals from the following:
$As,\text{ }Fe,\text{ }Xe,\text{ }Li,\text{ }B,\text{ }Cl,\text{ }Ba,\text{ }P,\text{ }I,\text{ }Si.$

Answer 1

Hint : We know that in the periodic table, we can find which differentiates the metals and the nonmetals. We can see the metals on the left side of the line other than element hydrogen which is nonmetal, we can find the nonmetals on the right side of the line, and metalloids are found nearby to the line.

Complete Step By Step Answer:
Metals, nonmetals and metalloids have to be explained by the components as metals, nonmetals, or metalloids. Metals are acceptable transmitters of heat and power, and are malleable (they can be pounded into sheets) and ductile (they can be brought into wire). The vast majority of the metals are solids at room temperature, with a trademark shiny sparkle. Metals are good conductors of heat and electricity, and are malleable and ductile.
We can say nonmetals are poor conductors of heat and power, and are not malleable or malleable; a considerable lot of the basic nonmetals are gases at room temperature, while others are fluids and others are solids. We can say the metalloids are in between the properties of metals and nonmetals. In their actual properties, they are more similar to the nonmetals, however in specific situations; a few of them can be made to direct conduct electricity.
$As-$ Arsenic is a metalloid.
$Fe-$ Iron is a metal.
$Xe-$ Xenon is Noble gas.
$Li-$ Lithium is a Metal.
$B-$ Boron is a Metalloid.
$Cl-$ Chlorine is non-metal.
$Ba-$ Barium is a Metal.
$P-$ Phosphorus is non-metal.
$I-$ Iodine is non-metal.
$Si-$ Silicon is a Metalloid.
Therefore, there are three metals $Fe,\text{ }Li,\text{ }Ba.$

Additional Information:
Most of the metals are solids at room temperature, with a characteristic silvery shine. Since the metals are further to the left on the periodic table, they have low ionization energies and low electron affinities so they lose electrons relatively easily and gain them with difficulty. They also have relatively few valence electrons, and can form ions (and thereby satisfy the octet rule) more easily by losing their valence electrons to form positively charged cations.

Note :
Remember that we have to know that when a metal and nonmetal combine with each other, an ionic compound could be obtained. When a nonmetal and nonmetal combine with each other, a covalent compound is obtained. The ionization energy of metals is low when compared to nonmetals and also metals have low electron affinities when compared to nonmetals.