複選題56. Which statements about hydrogen are true? (A)H has a lower ionization energy than He (B)H⁻ is smaller than H (C)H has a higher effective nuclear charge than He (D)H is always a metal (E)H does not have a second ionization energy

10. The kinetic-molecular theory of gases does not assume that (A)gases are made up of tiny particles in constant chaotic motion (B)gas particles are very small compared to the average distance between the particles (C)gas particles collide with the walls of their container in elastic collisions (D)the average velocity of gas particles is directly proportional to the absolute temperature (E)all of these are correct

複選題
56. Which statements about hydrogen are true?
(A)H has a lower ionization energy than He
(B)H⁻ is smaller than H
(C)H has a higher effective nuclear charge than He
(D)H is always a metal
(E)H does not have a second ionization energy

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