Question

Which one of the following has the similar physical state with water at room temperature?
1. Iodine
2. Bromine
3. Chlorine
4. Fluorine
5. None of the above/More than one of the above

Answer 1

Correct Answer - Option 2 : Bromine

The correct answer is Bromine.

• Bromine (Br) is a halogen group or Group 17 (Group VIIa) chemical element with atomic number 35.
• It is a fuming red-brown liquid at room temperature.
• Bromine vapour is amber in colour.
  • Bromine is a liquid because electrons are so apart from the nuclei therefore easily distorted.
  • Intermolecular forces are Intermediate, thus it is in a liquid state.
  • The average kinetic energy of the Br atoms is intermediated.

• Iodine (I) is a halogen group element with atomic number 53. It is a solid-state at room temperature.
• Chlorine (Cl) is a halogen group gas with atomic number 17. It is a toxic, corrosive, greenish-yellow gas. Harmful to the eyes and respiratory system.
• Fluorine (F) is the most reactive and the lightest member of the halogen group with atomic number 9.
• It has a faintly yellow gas with an irritating odour at room temperature.