Choose the letter of the best answer. 1. On what block does this element's electron configuration occurs? "1s 2s 2p 3s 3p6" a. S-block b. p-block d. f-block c. d-block 2. On what group (metal, non-metal, metalloid) does this electron configuration belongs? (182 2s 2p 3s 3p) a. Metal c. Metalloid/ semi-metal b. Non-metal d. None of the