Inside your smartphone.

SMARTPHONES; PERIODIC table of the elements; RARE earth metals; TRANSITION metals; PRECIOUS metals

The average smartphone contains a number of these rare earth elements, known as the lanthanide series of the periodic table (yes, scientists, technically yttrium is a "transition metal", but it's often lumped in with the rare earth elements because its properties are similar). Heavy rare earth elements, such as terbium and dysprosium, are in limited supply - and the supply chain is dominated by China. PERIODIC TABLE GROUP POST-TRANSITION METALS TRANSITION METALS LANTHANIDE SERIES ALUMINUM features in a compound that makes up the glass of many smartphones, and it is also used in the battery casing. [Extracted from the article]

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