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because they are ionic compounds and have strong electrostatic force of attaction
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∙ 11y ago
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Compounds with high melting points have?
Because they have interlocking electrons as the different elements' electrons have been 'tangled'
All metals are hard and have high melting points?
No, the alkali metals are pretty soft and the metals cesium, gallium, and mercury have very low melting points.
Why would decompression of mantle peridotite cause the production of mafic magma?
Melting points vary with pressure. In nearly all substances the melting point increases with increasing pressure. The peridotite in the mantle is extremely hot and under immense pressure. When it is decompressed some melting occurs. The composition is not uniform and some minerals have lower melting points than others. The mafic minerals will be able to melt while the ultramafic mineralls generally will not.
Does polythene have a high or a low melting point for a plastic?
Tungsten is a metal with a particularly high melting point (which has made it suitable for use as a filament in incandescent bulbs); ionic compounds such as granite have high melting points. Ceramics have high melting points.
What are the properties of all metals?
Copper, Gold, Iron, Nickel, Silver. * They have high melting and boiling points. * conduct heat and electricity * form positive ions * have a high density * malleable and ductile.
Does a metal have a high or low melting point?
All metals have different melting points but they are all high
Why all crystals have high melting points?
because all crystals are metals .
Compounds with high melting points have?
Because they have interlocking electrons as the different elements' electrons have been 'tangled'
All metals are hard and have high melting points?
No, the alkali metals are pretty soft and the metals cesium, gallium, and mercury have very low melting points.
Do All minerals have the same melting point True of False?
False, all minerals DO NOT have the same melting point
How high can melting points get?
At 6000K all elements will turn into a gas.there could be hundreds of unknown elements in space so there could be even higher melting points
Do all minerals have same melting point?
No.
Is there a metal that won't melt?
No, all metals melt. Though some have extremely high melting points.
Does all metal melt?
yes all metals melt but at differenttemperatures some have low and some have high melting points
Why would decompression of mantle peridotite cause the production of mafic magma?
Melting points vary with pressure. In nearly all substances the melting point increases with increasing pressure. The peridotite in the mantle is extremely hot and under immense pressure. When it is decompressed some melting occurs. The composition is not uniform and some minerals have lower melting points than others. The mafic minerals will be able to melt while the ultramafic mineralls generally will not.
Can minerals melt?
Virtually all minerals can be melted, when raised to high enough temperatures. But most minerals cannot be melted without some help besides open Sun. The temperature of melting depends on the atomic construction and composition of the mineral.
Do metals have definite melting points?
Yes, all metals have definite melting points. Most, under earths atmospheric pressure, have very high (hot) melting points, but mercury is liquid at room temperature. Mercury begins to "melt" from it's solid form at 39 degrees below zero!
