Why is iodine a solid at room temperature?
Table of Contents
Why is iodine a solid at room temperature?
Despite intermolecular forces being a weak individual force of attraction, collectively they are very strong and the numerous forces between iodine molecules means that more heat energy is required to break these intermolecular forces and separate the molecules therefore iodine is a solid.
Why iodine is liquid at room temperature?
Bromine, on the other hand, has a slightly higher molecular weight than fluorine and has stronger intermolecular interactions, thus it persists as a liquid at ambient temperature. Because iodine has a large molecular weight and strong Van Der Waals forces, it exists as a solid at normal temperature.
What is the normal state of iodine?
solid
As a pure element, iodine is a lustrous purple-black nonmetal that is solid under standard conditions. It sublimes (changes from a solid to a gaseous state while bypassing a liquid form) easily and gives off a purple vapor.
What is the state of at room temperature?
If the normal melting point of a substance is below room temperature, the substance is a liquid at room temperature. Benzene melts at 6°C and boils at 80°C; it is a liquid at room temperature….
| Density at 20°C | Density at 100°C | |
|---|---|---|
| liquid: water | 0.998 g/mL | 0.958 g/mL |
| gas: oxygen | 1.33 g/L | 1.05 g/L |
Why is bromine liquid at room temperature?
Bromine is the only non-metal that is in liquid at room temperature. Bromine is a liquid because the intermolecular forces are strong enough so that it does not evaporate. Bromine forms diatomic molecules and Van der Waals interactions are sufficiently strong.
What is chlorine at room temperature?
gas
Chlorine is a greenish yellow gas at room temperature and atmospheric pressure. It is two and a half times heavier than air. It becomes a liquid at −34 °C (−29 °F).
What is the state of iodine at 25?
solids
State at room temperature Room temperature is usually taken as being 25°C. At this temperature, fluorine and chlorine are gases, bromine is a liquid, and iodine and astatine are solids.
What is iodine made out of?
Today, iodine is chiefly obtained from deposits of sodium iodate (NaIO3) and sodium periodate (NaIO4) in Chile and Bolivia. Trace amounts of iodine are required by the human body. Iodine is part of thyroxin, a hormone produced by the thyroid gland that controls the body’s rate of physical and mental development.
Which of the following is a liquid at room temperature iron or iodine?
(b) Bromine is a metal which is liquid at room temperature. (It is the only metal in liquid state at room temperature.)