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Melting and boiling points of francium?
Now we don't have sure data. Melting point: possible 30 0C Boiling point: possible 677 0C
What is francium's melting an boiling points?
Not exactly known. The probably melting point of Fr: 27 0C The probably boiling point of Fr: 677 0C
What are the three elements that have known melting points than calcium?
Three elements with known melting points lower than calcium (which has a melting point of about 842 °C) are mercury (melting point -38.83 °C), francium (estimated melting point around 27 °C), and cesium (melting point 28.5 °C). These elements are either metals or metalloids that exist as solids at relatively low temperatures compared to calcium.
Does francium have a high or low boiling point?
Francium has a very low boiling point of approximately 677°C (1251°F). It is the second rarest naturally occurring element, and its melting and boiling points are among the lowest of all the elements.
What are some fun facts about Alkali metals?
The Alkali Metals are: -lithium -sodium -potassium -rubidium -cesium -francium These metals are silvery solids with low densities and melting points.
Why does Lithium and francium have the similar properties because?
Lithium and francium belong to the same group of the periodic table, Group 1 (alkali metals). They both have one valence electron, making them highly reactive. Additionally, they both have low melting and boiling points and are soft metals.
How does the arrangement of ions in a solid help to explain the high melting points of most ionic compounds?
In an ionic compound, ions are arranged in a regular and repetitive pattern, forming a strong electrostatic attraction between opposite charges. This arrangement requires a lot of energy to break apart, leading to high melting points. The stronger the electrostatic forces between ions, the higher the melting point of the compound.
Which material has higer melting point NaCl or sugar explain?
Generally inorganic ionic salts have higher melting points than organic materials; the bonds are stronger.
Lithium and francium have similar properties because they what?
Lithium and francium have similar properties because they both belong to the alkali metal group in the periodic table. This means they possess similar chemical reactivity and exhibit similar characteristics such as low melting points and high reactivity with water.
Which ions have high melting points?
positive ions have high melting points
Do proteins have definite melting points?
Different proteins have different melting points.
Is francium a gas liquid or a solid at room temp?
It is considered to be a solid at room temperature 20oC.Although, francium has a very short half-life (22 miuntes!), so the heat and energy given off by its decay may mean it is technically a liquid at room temperature (its melting point is about 27°C, even lower than caesium). However, this would depend greatly on how much francium you actually have. And, because of the intense radioactivity, it would probably be impossible to gather a significant amount of solid Fr.Francium is a solid at standard temperature and pressure.
