Arsenic, bismuth, and antimony were identified by alchemists during the Middle Ages, and later during the 1700 ’ s, many more elements were found.
Viduslaikos alķīmiķi identificēja tādus elementus kā, piemēram, arsēns, bismuts un antimons, un vēlāk, 18. gadsimtā, tika atklāti vēl daudzi citi.