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Write the names from the description. Two elements having valency 4.

Question 28.

Write the names from the description.

Two elements having valency 4.


Answer:

Two elements having valency four are 14Si (silicon) and 6C (carbon)


Explanation:


⇒ The atomic number of carbon = 6


The electronic configuration of 6C = 2,4


The electrons in the outermost shell = 4


Thus, its valency is 4.


⇒ The atomic number of silicon = 14


The electronic configuration of 14Si = 2,8,4


The electrons in the outermost shell = 4


Thus, its valency is 4