All Questions
Tagged with periodic-trends melting-point
17
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How would you explain the general trend in melting point between Group 1 and Group 2 chlorides?
This question is based off of the attached chart. I notice how there's a general increase in melting point down group 2 chlorides and a general decrease (except for Lithium) down the group 1 chlorides....
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Why does Cr have higher melting point in the 4 period among the transition metal? [duplicate]
There is a lot of answer stating that the low enthalpy of atomisation in Cr is due to the reason of partially filled d orbital, thus having extra stability. This makes the orbital more attracted ...
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Lower melting points of zinc, cadmium and mercury
I am aware of the fact that d-block elements like zinc, cadmium and mercury have lower melting points than other d-block elements. Also I am aware that these three metals have a fully filled d shell.
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Extent of Melting of Bonds or Intermolecular Forces
I'm currently having a revisit on the subject of periodicity of the periodic table, and I came across an issue that is kind of bugging me.
If we take a look at the melting and boiling point trends of ...
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The melting and boiling point decreases down the group up to group 14 (not including transition metals), but the trend reverses from group 15. Why?
In groups 1, 2, 13 and 14, the melting and boiling point decreases down the group with a few exceptions. In group 15 the melting/boiling point increases up to Arsenic and then started decreasing. In ...
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Comaparing melting points of group 14 elements [duplicate]
I found that melting point of $\ce{Sn(232°C)}$ is less than $\ce {Pb (327.5°C)} $ but i also saw that the bond enthalpy of $\ce {Sn-Sn(187.1 ±0.3 kJ mol^{-1})}$ is more than $\ce{Pb-Pb 86.6 ±0.8 kJ ...
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Why is the melting point of magnesium oxide higher than aluminium oxide?
There's a graph of the melting points of period three oxides. The melting point of magnesium oxide is several hundred Kelvin higher than aluminiumoxide. I can't find any explanations for this on the ...
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Why is the melting point of hydrogen iodide larger than that of hydrogen fluoride?
Compare the melting points of hydrogen fluoride (HF) and hydrogen iodide (HI).
I know the following things:
$\ce{HF}$ melts at $189.6~\mathrm{K}$ and $\ce{HI}$ at $222.35~\mathrm{K}$.
There are a ...
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Melting Point Trend For Non Metals?
I noticed that the melting point for non metals decreases across a period (i.e. melting point of nitrogen is higher than oxygen, oxygen's is higher than fluorine, so on). It is significantly more ...
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Why are the melting and boiling points of the group 1 metals lower than the group 2 metals in the same period?
I thought it was because the group 1 metals are smaller than the group 2 metals but the answer sheet says it's because there are more valence electrons and a stronger positive charge in group 2 metals....
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Melting points of alkali metal halides
The correct order of melting point of alkali metal halides is:
$\ce{MF}>\ce{MCl}>\ce{MBr}>\ce{MI}$
$\ce{MI}>\ce{MBr}>\ce{MCl}>\ce{MF}$
$\ce{MCl}>\ce{MF}>\ce{MBr}>\ce{MI}$
$\...
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Melting temperature and electronegativity trends in transition metals [duplicate]
So I know that generally the melting temperature increases across the row (let's look at just the first row for now) but what are the deviations? And why do they occur? I've looked everywhere online ...
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Why do the boiling and melting points decrease as you go down group 1 and vice versa for group 7?
I used to think that because an alkali metal needs to lose one electron to complete its outer shell, when the atom increases in size (atomic radius), the electron would be easier to lose as the ...
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Why do the melting points of Group 15 elements increase upto Arsenic but then decrease upto Bismuth?
The boiling points of group 15 elements increase on going down the group (or, as size increases) but the same is not true for the melting points. The melting points increase from $\ce{N}$ to $\ce{As}$ ...
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Why there is an exception in melting and boiling point in p block?
Why is the boiling point and melting point of 15th group and 16th group has an exception?
We know that as molecular mass increases boiling point and melting point also increase. So, down the group 15 ...
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