GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Osmium
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Mercury
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Iron
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Nickel
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Detailed explanation-1: –Osmium metal is the heaviest metal present on the earth and has a weight twice that of lead per teaspoon.-Osmium belongs to the platinum group and is hard in nature.-The density of Osmium is 22.6 kg/L.-Among the given options Lithium is the lightest metal and Osmium is the heaviest metal.
Detailed explanation-2: -Osmium has the highest density among all the given metals, hence, it is the heaviest.
Detailed explanation-3: -Why Osmium and Iridium Are So Heavy. Even though there are many elements with higher atomic weight values, osmium and iridium are the heaviest. This is because their atoms pack together more tightly in solid form. The reason for this is that their f electron orbitals are compacted when n=5 and n=6.
Detailed explanation-4: -Uranium has the highest atomic weight (19 kg m) of all naturally occurring elements.