Covalent molecular compounds usually have a low enthalpy of fusion and vaporization due to the same reason.
Are granite and diamond the only network solids.
In the diagram some carbon atoms only seem to be forming two bonds or even one bond but that s not really the case.
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Both quartz and diamond are beautiful gemstones to use in jewelry but only one makes for the perfect engagement ring.
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The same goes for a diamond.
What makes diamond so hard.
This accounts for diamond s hardness extraordinary strength and durability and gives diamond a.
The structure of diamond is shown at the right in a ball and stick format.
It s soft and powdery baby power is also a solid.
This is because the intermolecular forces between covalent molecules require a lower amount of energy to separate from each other.
The key is that solids hold their shape and they don t flow like a liquid.
Which statement best describes why graphite is soft.
Solids can hold their shape because their molecules are tightly packed together.
It is a strong rigid three dimensional structure that results in an infinite network of atoms.
A graphite is made up of only carbon atoms.
Graphite ˈ ɡ r æ f aɪ t archaically referred to as plumbago is a crystalline form of the element carbon with its atoms arranged in a hexagonal structure it occurs naturally in this form and is the most stable form of carbon under standard conditions under high pressures and temperatures it converts to diamond graphite is used in pencils and lubricants.
We are only showing a small bit of the whole structure.
A rock will always look like a rock unless something happens to it.
You might ask is baby power a solid.
Graphite the most stable form diamond and fullerene.
Take a look at our quartz vs diamond comparison as we ll discuss the similarities and differences in brilliance hardness cut and other characteristics you should look into when buying a gemstone.
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In diamond each carbon shares electrons with four other carbon atoms forming four single bonds.
The enthalpy of fusion is the amount of energy that is required to melt a solid.
Carbon has an electronic arrangement of 2 4.
