Answer
Verified
463.8k+ views
- .Hint: Count the number of valence electrons (electrons in the outermost shell) of fluorine. The atomic number of Fluorine is 9.
Complete step by step answer:
According to IUPAC, valency is defined as “the maximum number of univalent atoms (originally hydrogen or chlorine atoms) that may combine with an atom of the element under consideration, or with a fragment, or with a fragment, or for which an atom of this element can be substituted”.
In a nutshell, we can say that valency is a parameter to measure the ability of an atom or element to form a molecule or compound. It can also be defined as the number of bonds the element can form in a compound. Valency, unlike oxidation number, has no sign.
The electronic configuration of fluorine (atomic number = 9) is:
\[1{{s}^{2}}2{{s}^{2}}2{{p}^{5}}\]\[\]
From the electronic configuration given above, we can see that the valence orbital (2p), needs only one electron to complete its octet.
Therefore, the valency of fluorine atoms is 1, it is univalent.
Hence, the answer is option (b).
Additional Information:
We can also find the valency of an element by using the formula –
Valency = 8 – (number of valence electrons in the element)
In this case,
Valency = 8 – 7 = 1.
Note: Do not confuse between oxidation number and valency. Valency has no charge. Valency is the number of electrons required to complete its octet. Whereas, oxidation number is the charge of an element, either independently, or in a compound.
Valency of fluorine is 1, whereas oxidation number of fluorine is -1.
Complete step by step answer:
According to IUPAC, valency is defined as “the maximum number of univalent atoms (originally hydrogen or chlorine atoms) that may combine with an atom of the element under consideration, or with a fragment, or with a fragment, or for which an atom of this element can be substituted”.
In a nutshell, we can say that valency is a parameter to measure the ability of an atom or element to form a molecule or compound. It can also be defined as the number of bonds the element can form in a compound. Valency, unlike oxidation number, has no sign.
The electronic configuration of fluorine (atomic number = 9) is:
\[1{{s}^{2}}2{{s}^{2}}2{{p}^{5}}\]\[\]
From the electronic configuration given above, we can see that the valence orbital (2p), needs only one electron to complete its octet.
Therefore, the valency of fluorine atoms is 1, it is univalent.
Hence, the answer is option (b).
Additional Information:
We can also find the valency of an element by using the formula –
Valency = 8 – (number of valence electrons in the element)
In this case,
Valency = 8 – 7 = 1.
Note: Do not confuse between oxidation number and valency. Valency has no charge. Valency is the number of electrons required to complete its octet. Whereas, oxidation number is the charge of an element, either independently, or in a compound.
Valency of fluorine is 1, whereas oxidation number of fluorine is -1.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
Mark and label the given geoinformation on the outline class 11 social science CBSE
When people say No pun intended what does that mea class 8 english CBSE
Name the states which share their boundary with Indias class 9 social science CBSE
Give an account of the Northern Plains of India class 9 social science CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Trending doubts
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Which are the Top 10 Largest Countries of the World?
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Difference Between Plant Cell and Animal Cell
Give 10 examples for herbs , shrubs , climbers , creepers
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
Write a letter to the principal requesting him to grant class 10 english CBSE
Change the following sentences into negative and interrogative class 10 english CBSE