Question: DO NOT COPY FROM CHATGPT OR AN ANSWER THATS ALREADY UPLOADED i) The crystal structure of Lithium Selenide, Li2Se, is an antifluorite structure, which has

DO NOT COPY FROM CHATGPT OR AN ANSWER THATS ALREADY UPLOADED DO NOT COPY FROM CHATGPT OR AN ANSWER THATS ALREADY UPLOADED i)

i) The crystal structure of Lithium Selenide, Li2Se, is an antifluorite structure, which has anions in the fcc close-packed structure with Li cations occupying all 8 tetrahedral positions. Draw the structure and calculate the density of Li2SSe. The atomic weights are: AL=6.941g/mol and As=87.97g/mol. The ionic other Selenium atoms but that they do touch Lithium atoms. (20 points) ii) What is the maximum radius of a cation which can be accommodated in the vacant interstice of the anion array of LizSe? (10 points)

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