alleryIn the halogen family (group 17), which member exists as a solid at room temperature?
AFluorine
BIodine
CChlorine
DBromine
Answer & Solution
Correct answer: B. Iodine
1. Group-17 elements show a gradation in physical state down the group.
2. Fluorine and chlorine are gases; bromine is a liquid.
3. Iodine, the heaviest listed, is a solid at room temperature.
4. Rule out D: bromine is a liquid, not a solid.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 2 "Periodic Classification of Elements", p.36_
Keep practising Unit 1C1: Periodic Trends in Atomic Properties
Browse all Unit 1C1: Periodic Trends in Atomic Properties questions for Maharashtra SSC (Class 10), or explore more Chemistry topics.
Related questions
In which block of the modern periodic table are the nonmetals found?An element has the electronic configuration 2, 8, 2. To which group and period of the modeThe tendency of a nonmetal atom to accept electrons and form an anion, which increases acrHow does the metallic character of elements change while moving down a group?The tendency of a metal atom to lose its valence electrons and form a cation is called itsAmong the period-2 elements Li, Be, B, C, N, O whose atomic radii are 152, 111, 88, 77, 74What happens to atomic size as one moves down a group of the modern periodic table?In what unit is atomic radius expressed, defined as the distance between the nucleus and t