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Astatine has 33 isotopes, all radioactive and consequently unstable, with short half lives (the most stable isotope has a half life of 8,1 hours); therefore it is more correct to indicate the Atomic Mass of each isotope.
For this see the link: http://en.wikipedia.org/wiki/Isotopes_of_astatine.
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∙ 14y ago
Astatine is a very rare and radioactive element with no stable isotopes, so its properties are not well-defined. The estimated melting point of astatine is around 302 degrees Celsius. However, due to its scarcity and radioactivity, it is difficult to obtain enough of it for experimental study.
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∙ 11y agoNo. Astatine is a halogen, which makes it a nonmetal. Nonmetals are poor conductors of heat.
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∙ 14y agoThe melting point of astatine is 302 0C.
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∙ 15y ago280 'c
Wiki User
∙ 8y ago210
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∙ 14y ago890 kJ/mol
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∙ 14y agoNot known
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Why is melting point of astatine higher than chlorine?
The higher melting point of astatine compared to chlorine is due to astatine being a heavier and larger atom with stronger metallic bonding forces. These stronger forces result in astatine requiring more energy to overcome intermolecular forces and change from a solid to a liquid form at a higher temperature compared to chlorine.
What will be the state of astatine at 20 degrees?
At 20 degrees Celsius, astatine would likely be a solid. Astatine is a rare and highly radioactive element with a melting point of around 302 degrees Celsius, so it would typically exist as a solid at room temperature.
What is the boiling point of astatine?
The boiling point of astatine is approximately 337 degrees Celsius. Astatine is a rare and highly radioactive element that exists only in trace amounts in nature. Due to its radioactivity and scarcity, it is challenging to study its properties in detail.
What are the 2 halogens with the highest melting points?
Melting points increase with atomic weight for elemental halogens (the second-most right column in a periodic table). The heavier the atom, the harder to turn it into a liquid. The lightest halogens, such as Florine (F) and Chlorine (Cl) are gasses at room temperature, having "melted" and "boiled" at lower (colder) temperatures. The two heaviest halogens are Iodine (I) and Astatine (At). Astatine is very rare, but Iodine is common and is a solid at room temperature. The have the highest melting points of halogens. Remember, F down to At increase in melting points. F and Cl are gases, so they have low melting point. Br is a liquid, so it has a higher melting point. I and At are solids so it takes more heat to melt them.
Which term is defined as the temperature at which a substance changes from a solid to a liquid state?
The term defined as the temperature at which a substance changes from a solid to a liquid state is called the melting point.
Why is melting point of astatine higher than chlorine?
The higher melting point of astatine compared to chlorine is due to astatine being a heavier and larger atom with stronger metallic bonding forces. These stronger forces result in astatine requiring more energy to overcome intermolecular forces and change from a solid to a liquid form at a higher temperature compared to chlorine.
What are the melting and boiling points of astitine?
The melting point of astatine is 302 degrees C and the boiling point is 337 degrees C. This was reported on a periodic table given as a promo by Spectrum Chemicals.
What is the boiling point of astatine?
The boiling point of astatine is approximately 337 degrees Celsius. Astatine is a rare and highly radioactive element that exists only in trace amounts in nature. Due to its radioactivity and scarcity, it is challenging to study its properties in detail.
What are the melting and boiling points of astatine?
Astatine (At) Melting points: 575 K, 302 °C, 576 °F Boiling points: 610 K, 337 °C, 639 °F
What do you call the temperature at which a solid changes to a liquid?
This is the melting point.
Which term is defined as the temperature at which a substance changes from a solid to a liquid state?
The term defined as the temperature at which a substance changes from a solid to a liquid state is called the melting point.
The temperature at which a solid melts is called?
The temperature at which a solid melts is called the melting point. At this temperature, the solid transitions into a liquid state.
What are the 2 halogens with the highest melting points?
Melting points increase with atomic weight for elemental halogens (the second-most right column in a periodic table). The heavier the atom, the harder to turn it into a liquid. The lightest halogens, such as Florine (F) and Chlorine (Cl) are gasses at room temperature, having "melted" and "boiled" at lower (colder) temperatures. The two heaviest halogens are Iodine (I) and Astatine (At). Astatine is very rare, but Iodine is common and is a solid at room temperature. The have the highest melting points of halogens. Remember, F down to At increase in melting points. F and Cl are gases, so they have low melting point. Br is a liquid, so it has a higher melting point. I and At are solids so it takes more heat to melt them.
What is difference between melting point and drop melting point?
No basic Difference between melting point and Drop point.
What becomes solid above the melting point?
A substance becomes solid above its melting point. At temperatures below the melting point, the substance typically exists in a liquid state.
Deffine melting point?
The melting point of a substance is the temperature at which it changes from a solid to a liquid state. It is a characteristic physical property of the substance and can vary depending on its chemical composition and purity.
Melting point for LPG?
what is lpgs melting point
