Calculate the De Broglie wavelength of an electron traveling with a velocity of 9.0 * 103 kilometers per second. The mass of an electron is 9.1 x 10-28 g. )(c= 3 x 108 m/s, h=6.63x10^34 J•s) * (1 Point) 8.1 x 10-14m 8.1 x 10-8m 8.1 x 10-11m т 8.1 m
9 The second ionization energy of Mg is than its first ionization energy, and is than the second ionization energy of Na. (1 Point) * higher, lower higher, higher lower, higher lower, lower