SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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6
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16
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7
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17
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Detailed explanation-1: -An iodine atom has seven valence electrons.
Detailed explanation-2: -The family of elements having seven electrons in the valence shell is halogens, i.e., chlorine, fluorine, bromine, iodine, astatine.
Detailed explanation-3: -The elements in this family are fluorine, chlorine, bromine, iodine, and astatine. Halogens have 7 valence electrons, which explains why they are the most active non-metals. They are never found free in nature.
Detailed explanation-4: -Given that the element has atomic number 7. So its E.C = 2, 5. So, the valency of this element is 3.
Detailed explanation-5: -The Group 7 elements – fluorine (F), chlorine (Cl), bromine (Br), iodine (I) and astatine (At) – have seven electrons in the outer shell.