Question

Carbon, Phosphorus, Sulphur are non-metals. Which of the following are their characteristics.
(A) Poor conductor of heat and electricity
(B) Don't produce sound when beaten together
(C) Brittle in nature
(D) Can be gaseous, liquid and solid at room temperature

Answer 1

Hint :Natural materials that do not conduct heat or electricity and are structurally brittle are known as non-metals (can not be easily rolled, moulding, extruding or pressing). The non-metallic elements in the periodic table are hydrogen, carbon, nitrogen, oxygen, phosphorus, arsenic, and selenium.

Complete Step By Step Answer:
Non-metals make up a small percentage of the periodic table. These can be found on the periodic table's right-hand column. Sulphur, sulphur, all halogens, phosphorus, hydrogen, oxygen, selenium, nitrogen, and noble gases are also non-metals.
Non-metals are found to the left of halogens and to the right of metalloids in the periodic table. Noble gases and halogens are also referred to as non-metals because they are non-metals as well.
Physical Properties-
Bad heat and electricity conductors
Metals that aren't ductile
Solids that are brittle
Solids, liquids, or gases at room temperature
These aren't sonorous at all.
Clearly visible (Transparent)
Chemical properties-
The number of electrons in the outer shell is usually between 4 and 8 in most cases.
Gain or lose valence electrons with ease
When they come into contact with oxygen, they produce acidic oxides.
Elements with a high electronegative charge
Excellent oxidizers
Metals and non-metals have distinct properties (allotropes). They come in a variety of forms and properties. Allotropes are elements that can be found in two or more physical shapes.
Example 1- A non-metal carbon – diamond and graphite are two allotropes of carbon.
Example 2- Consider the metal iron, which has two allotropes: austenite and ferrite.
Hence, all options are correct.

Note :
Carbon is a chemical element with the atomic number 6 and the letter C. It's nonmetallic and tetravalent, which means it has four electrons required for chemical bonds. It belongs to the periodic table's 14th section. Just about 0.025 percent of the Earth's crust is made up of carbon.
Phosphorus is a chemical element of atomic number 15 and the symbol P. Phosphorus occurs in two main forms: white phosphorus and red phosphorus, but it is never present as a free product on Earth due to its high reactivity.
Sulfur is a chemical element with the atomic number 16 and the symbol S. It's nonmetallic, plentiful, and multivalent. Sulfur atoms form cyclic octatomic molecules with the chemical formula S8 under normal conditions. At room temperature, element sulphur is a bright yellow crystalline solid.