Paper: Science X Summative Assessment Term II Sample Paper FM :90 Total time 3 hrs 1 mark Questions 1. Name the element which has twice as many electrons in its second shell as in its first shell. Write its electronic configuration also. 2. Give common name of the plant on which Mendel performed his experiments. 3. In a food chain comprising frogs, insects, birds and grass, which one of the organisms is likely to have maximum concentration of harmful non biodegradable chemicals in its body? 2 marks Questions 4. Choose from the following elements whose atomic numbers are given in parentheses H(1), He(2), C(6), F(9), Na(11), Cl(17), Mg(12) a) Smallest element of 3rd period. b) A noble gas. c) A metal of 3rd pe...