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An elemental crystal has density of 8570...

An elemental crystal has density of `8570 kg m^(-3)`. The packing efficiency is `0.67`. If the closest distance between neighbouring atoms is `2.86 Å`. The mass of one atom is `(1 amu = 1.66 xx 10^(-27))kg)`

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An elemental crystal has density of 8570 kg m^(-3) . The packing efficiency is 0.68 . If the closest distance between neighbouring atoms is 2.86 Å . The mass of one atom is (1 amu = 1.66 xx 10^(-27))kg)

An element forms crystals of density of 8570kgm^(-3) . The packing efficiency is 0.68. If the closest distance between neighbouring atoms is 2.86 Å. The mass of one atom is (1 amu = 1.66xx10^(-27) kg)

The element whose atom has mass of 10.86 xx 10^-26 kg is

One atomic mass unit is equal to 1.67 xx 10^-27 g .

How many protons weight 5kg? The mass of a proton is 1.67xx10^(-27)kg .

Use Avogadrs's number to show that the atomic mass unit is 1 u =1.66 xx 10^(-27) kg .