question_answer 43)

    Three elements B, Si and Ge are (a) metals                                                                            (b) non-metals                  (c) metalloids                                                                     (d) metal, non-metal and metalloid respectively

Answer:

                  (c)The elements boron (B), silicon (Si) and germanium (Ge) are metalloids. In the periodic table, metals have been separated from non-metals by some elements called 'metalloids' which are placed diagonally in the periodic table. These metalloids are B, Si, Ge, As (arsenic), Sb (antimony), Te (tellurium) and (Po) polonium.