Indicate if the each of the following statement is true (T) or False (F). if n =
ID: 1070843 • Letter: I
Question
Indicate if the each of the following statement is true (T) or False (F). if n = 5, the possible values of the angular-momentum quantum number I is: -4, -3, -2, -1, 0, +1, +2, +3, +4, For an electron in given atom, the larger n, the larger the average distance from the nucleus and the higher the orbital energy. The preferred electron configuration of Molybedum is [Kr] 5s^14d^5 rather than [Kr] 5s^2 4d^4. In the same period (n is the same), atomic radii of elements in group I are smaller than those of elements in the Group VII. The principal quantum number(n) is a positive integer on which the size and energy level of the orbital primarily depend. The effective nuclear charge, Z_eff is often substantially lower than the actual nuclear charge Z due to the electron shielding. The Heisenberg uncertainty principle state that it is impossible to know precisely where an electron is and what path it follows. Quantum numbers I and m define three-dimensional shape of orbital and the spatial orientation of the orbital, respectively. Infrared light has higher frequency and hence higher energy than ultraviolet light. Chlorine has lower ionization energy (E_i1) and higher electron affinity (E_ea) than sulfur.Explanation / Answer
(1) False. For a given n value, l has values from 0 to n-1. So, for n=5, l = 0,1,2,3,4 only.
(2) TRUE. As n increases size also increase.
(3) TRUE. Half or full filled degenerate orbitals give extra stability.
(4) FALSE. Atomic radii decrease from left to right. So, group I has more atomic radii tha Group VII
(5) TRUE
(6) TURE
(7) TURE
(8) TRUE
(9) FALSE. UV has higher frequency and energy than IR
(10) FALSE> Both IE and EA are higher than S for Cl