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Which of these represents an alkaline earth metal compound? Ca2SiO4B4C Na2SO4Si3N4What is the Group 7A element in Pe

Posted: Thu Jul 14, 2022 8:04 pm
by answerhappygod
Which of these represents an alkaline earth metal compound?
Ca2SiO4B4C Na2SO4Si3N4What is the Group 7A element in Period 4?PMg BrSc
Ca2SiO4B4C Na2SO4Si3N4What is the Group 7A element in Period 4?PMg BrSc
PMg BrSc