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Phosphorus
Phosphorus was discovered by German alchemist Hennig Brand -
Cobalt
Cobalt was first discovered by a Swedish chemist Georg Brandt. -
Platinum
Platinum was discribed by Julius Caesar Scaliger in 1557. But the metal was observed by Antonio de Ulloa and Don Jorge Juan y Santacilia in 1748. -
Nickel
Nickel was discovered by the Swedish chemist Axel Fredrik Cronstedt. -
Hydrogen
Hydrogen was discovered by English chemist and physicist Henry Cavendish.