Most metals exist as solids at room temperature. All substances can exist in any of these three states. In addition to existing in one of the three states, matter can also undergo a change of state.
Which is solid at room temperature i2 br2 cl2 f2?
The London dispersion forces become progressively stronger. At a low enough temperature the molecules will all be solids. At a high enough temperature they will all be gases. It is only at temperatures between -7 °C and 59 °C that fluorine and chlorine are gases, bromine is a solid, and iodine is a solid.
Which one of the following is solid at room temperature?
Most metals exist as solids at room temperature. All substances can exist in any of these three states. In addition to existing in one of the three states, matter can also undergo a change of state.
What is the room temperature?
The American Heritage Dictionary of the English Language identifies room temperature as around 20–22 °C (68–72 °F) , while the Oxford English Dictionary states that it is “conventionally taken as about 20 °C (68 °F)”.
Which elements are a liquid at room temperature?
Key Takeaways: Liquid Elements
Only two elements on the periodic table are elements at room temperature. They are mercury (a metal) and bromine (a halogen) . Four other elements are liquids slightly warmer than room temperature. They are francium, cesium, gallium, and rubidium (all metals).
Is F2 solid liquid or gas at room temperature?
At room temperature, F2 and Cl2 are gases , Br2 is a liquid, and I2 is solid.
Which is most likely solid F2 or I2?
Ernest Z. The most likely cause is that the attractive forces between the molecules of I2 are greater than those in F2 .
Is Cl2 solid at room temperature?
Explain why chlorine (Cl2) is a gas at room temperature, but sodium chloride (NaCl) is a solid at room temperature . The melting/boiling point of a substance determines what state of matter it takes at a certain temperature. In Cl2 there are covalent bonds between the atoms forming simple molecules.
What is the healthiest temperature to keep your house?
Depending on the season, the ideal house temperature for both comfort and efficiency is between 68 to 78 degrees Fahrenheit . In the summer, the recommended thermostat setting is 78 degrees F. In the winter, 68 degrees is recommended for energy savings.
What is the best room temperature?
Most people find the ideal temperature in the living room to be between 19 and 22 degrees . Others believe ‘the warmer the better', of course keeping in mind that every degree will also be seen on the bill. Preferably, do not heat to more than 20 or 21 degrees.
What's another word for room temperature?
| 23°C 23 degrees celsius | 73.4 degrees Fahrenheit 73.4 °F | ambient temperature normal temperature and pressure | room temperature and pressure |
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Which metal is only liquid?
Mercury is the only metal that is liquid at normal temperatures.
What are 10 liquids?
- Water.
- Milk.
- Blood.
- Urine.
- Gasoline.
- Mercury (an element)
- Bromine (an element)
- Wine.
Which element is solid at room temperature and pressure?
except mercury . anything above uranium is likely to be a solid too. There are only two liquid elements at room temperature and pressure; bromine and mercury. Few gases; noble gases, fluorine, chlorine, oxygen, nitrogen, and hydrogen.
Is iodine a solid liquid or gas?
Iodine is a nonmetallic, nearly black solid at room temperature and has a glittering crystalline appearance. The molecular lattice contains discrete diatomic molecules, which are also present in the molten and the gaseous states. Above 700 °C (1,300 °F), dissociation into iodine atoms becomes appreciable.
Is F2 a gas?
Fluorine is the chemical element in the periodic table that has the symbol F and atomic number 9. In its pure form, it is a poisonous, pale, yellow-green gas, with chemical formula F2. ...
