
Is Iodine highly reactive?
Answer
428.4k+ views
Hint: Iodine is a chemical element with the atomic number 53 and the symbol I. The oxidation states of iodine are -1, +1, 5, and 7. In its elemental state, iodine exists as a diatomic molecule. It appears as a violet solid at room temperature. The stable isotope of iodine is I-127. It was first discovered in 1811 with the help of sulfuric acid and seaweed. Iodide ions can currently be isolated from seawater.
Complete answer:
Iodine is a nonmetallic, lustrous, dark gray/purple-black solid element. Thyroid hormone production is one of the many important functions of iodine in life.
Iodine is the least reactive and most electropositive of the halogens, meaning it loses electrons and forms positive ions during chemical reactions. It is also the least abundant and the heaviest of the stable halogens.
Due to the addition of new shells, the atomic radius of halogens increases as we move down the group. As a result, the halogen X--X bond length increases as the group progresses. As a result, breaking the bond requires less energy (bond dissociation enthalpy decreases). As a result, iodine should be the most reactive halogen, according to this hypothesis. However, this is not the case. Fluorine, on the other hand, is the most reactive halogen. Almost all chemicals react violently with it. Fluorine cleaves bonds much more easily than other halogens, possibly due to the repulsive force of the lone pairs of electrons.
Hence, Iodine is least reactive.
Note:
A goitre (enlarged thyroid gland) will develop if the body does not receive enough iodine. Iodine has been added to table salt to aid in the proper functioning of thyroid hormones. Iodine is used as an antiseptic as well. Iodine is commonly found in disinfectant sprays and is likely present in solutions used to clean open wounds. In addition, silver iodide is necessary for the development of photographs.
Complete answer:
Iodine is a nonmetallic, lustrous, dark gray/purple-black solid element. Thyroid hormone production is one of the many important functions of iodine in life.
Iodine is the least reactive and most electropositive of the halogens, meaning it loses electrons and forms positive ions during chemical reactions. It is also the least abundant and the heaviest of the stable halogens.
Due to the addition of new shells, the atomic radius of halogens increases as we move down the group. As a result, the halogen X--X bond length increases as the group progresses. As a result, breaking the bond requires less energy (bond dissociation enthalpy decreases). As a result, iodine should be the most reactive halogen, according to this hypothesis. However, this is not the case. Fluorine, on the other hand, is the most reactive halogen. Almost all chemicals react violently with it. Fluorine cleaves bonds much more easily than other halogens, possibly due to the repulsive force of the lone pairs of electrons.
Hence, Iodine is least reactive.
Note:
A goitre (enlarged thyroid gland) will develop if the body does not receive enough iodine. Iodine has been added to table salt to aid in the proper functioning of thyroid hormones. Iodine is used as an antiseptic as well. Iodine is commonly found in disinfectant sprays and is likely present in solutions used to clean open wounds. In addition, silver iodide is necessary for the development of photographs.
Latest Vedantu courses for you
Grade 11 Science PCM | CBSE | SCHOOL | English
CBSE (2025-26)
School Full course for CBSE students
₹41,848 per year
Recently Updated Pages
Master Class 11 Physics: Engaging Questions & Answers for Success

Master Class 11 Chemistry: Engaging Questions & Answers for Success

Master Class 11 Biology: Engaging Questions & Answers for Success

Class 11 Question and Answer - Your Ultimate Solutions Guide

Master Class 11 Business Studies: Engaging Questions & Answers for Success

Master Class 11 Computer Science: Engaging Questions & Answers for Success

Trending doubts
Explain why it is said like that Mock drill is use class 11 social science CBSE

The non protein part of an enzyme is a A Prosthetic class 11 biology CBSE

Which of the following blood vessels in the circulatory class 11 biology CBSE

What is a zygomorphic flower Give example class 11 biology CBSE

The deoxygenated blood from the hind limbs of the frog class 11 biology CBSE

What is the function of copulatory pads in the forelimbs class 11 biology CBSE
