Question

Short answer. Points as marked. Show work for credit on calculation problems Place Final Answers in the spaces provided. Round answers to the correct number of significant figures. 55) Which periodic table group or groups containćs) only gases? (1 pt) 56) Briefly define Heisenberg's Uncertainty Principle. (1 pt) 57a) Calculate the kinetic energy in J of an electron moving at 2.55 x 10* m/s b) Calculate the de Broglie wavelength of the electron. The mass of an electron is 9.11 x1028 g (1 pt each) 57a) 57b) Balance the following equation. Please fill in all blanks including where the coefficient -1.(2pts each)