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Q: Name the densest stable element known on earth.
  • A. Tungsten
  • B. Osmium
  • C. Aluminium
  • D. Rhodium
Correct Answer: Option B - At the normal temperatures and pressures of Earth's surface, Osmium is the densest naturally occurring element, with an experimentally measured (using x-ray crystallography) density of 22.65 g/cm³ . Its symbol is Os and Atomic number is 76.
B. At the normal temperatures and pressures of Earth's surface, Osmium is the densest naturally occurring element, with an experimentally measured (using x-ray crystallography) density of 22.65 g/cm³ . Its symbol is Os and Atomic number is 76.

Explanations:

At the normal temperatures and pressures of Earth's surface, Osmium is the densest naturally occurring element, with an experimentally measured (using x-ray crystallography) density of 22.65 g/cm³ . Its symbol is Os and Atomic number is 76.