Page 1. Which of the following statements is TRUE? a. The principal quantum numb
ID: 1030894 • Letter: P
Question
Page 1. Which of the following statements is TRUE? a. The principal quantum number (n) describes the shape of an orbital b. The angular momentum quantum number ( describes the the size and energy associated with an orbital. c. The magnetic quantum number (m) describes the orientation of the orbital. d. An orbital is the path that an electron follows during its movement in an atom e. All of the above are true. For a hydrogen atom, which electronic transition would result in the emission of a photon with the highest energy? 2. a. 3s 4p b. 2p 6d 3. Which of the statement is true for two electrons that have the following sets of quantum numbens? Electron A: "-4, 1.2, m/-2, ms- Electron B: n-4, 1-2, "1.-2, -- a. They are in the same principle shell, but not subshell b. They are in the same orbital c. They are in the same subshell, but different orbitals d. They are in the p subshell e. They are roommates 4· The element that corresponds to the electron configuration is22s22p6323p6413d5 is a· Titanium b. Vanadium d. Manganese e. Iron 5. Which of the following statements is TRUE? An orbital that penetrates into the region occupied by core electrons is more shiclded from nuclear charge a. than an orbital that does not penetrate and therefore has a lower energy b. 2p electrons can effectively shield 2s electrons due to penetration. c. Electrons in the 2s orbital would have lower potential energy than electrons in the 3s orbital d. For the hydrogen atom, its 3s, 3p, and 3d orbitals are different in energy e. None of the above is true.Explanation / Answer
1)
Which of the following statements are TRUE?
The principal quantum number (n) describes the shape of an orbital. FALSE, the number of subshells, or l, describes the shape of the orbital.
An orbital is the path that an electron follows during its movement in an atom. FALSE, it is a region, not a path
The angular momentum quantum number (l) describes the the size and energy associated with an orbital. FALSE, The magnetic quantum number, ml, describes the energy levels in a subshell
The magnetic quantum number (ml) describes the orientation of the orbital. TRUE
2)
c)1/2^2 - 1/4^2 =0.188 by using the formula(1/nf^2-1/ni^2) where nf is the final energy level,ni is the initial energy level
c is an answer
4) the atomic number=24
chromium is the element that have electronic configuration
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