Orbitals within a given subshell have the same principle and angular momentum qu

Question

Orbitals within a given subshell have the same principle and angular momentum quantum numbers. Same principle quantum numbers. Same angular momentum quantum numbers. Same angular momentum and magnetic quantum numbers. Same spin quantum number. If the principle quantum number is seven (n=7) and the angular momentum quantum number is three (l = 3), which of the following values is NOT an allowed value of the magnitude quantum number(m_l) 0 1 2 -3 4 which combination of quantum numbers would be allowed for one subshell containing five orbitals? n = 1, l = 0 n = 2, l = 4 n = 5, l = 0 n = 4, l = 4 n = 3, l = 2 Which of the following atom, or ions has a single unpaired electron? He Na^+ Sr Al Be Which or the following has the smaller atomic radius? Ca K Sr Sc se Which of the following elements would you expect to have the greatest first ionization energy? F C Li Be B Electron affinity is the energy change that occurs. when one mole of electrons are added 10 one mole of gas-phase atoms or tons when a gas-phase atom or ion in its ground sate gains an election when one mole of electrons is added to one mole of atoms in their most stable state d when an electron experiences the pull of the nucleus e when an atom attracts an electron on another atom to form a chemical bond When an ionic compound melts, the structure of the cry stable lattice breaks down and the ions must be able to slip past each other. Using electrostatic potential energy as a guide, identify the compound with the highest melting point NaF KF ScF_3 NaCl RbCI Which of the following statements regarding covalent bonds is NOT true? Electrons in a single covalent bond arc mutually attracted to two nuclei. The average bond length is the distance between the nuclei when the energy is at a minimum The energy of the interaction between two neutral atoms continuously decreases as their separation decreases The covalently bonded atoms are at a lower energy than the separated atoms Electron nucleus attractions must overcome electron -electron and nucleus-nucleus repulsions.

Explanation / Answer

18. suppose you take 2p orbital subshell. So, for this principal quantum number is 2(same) and angular momemtum quantum number will be 1 (same) for each electrons. Magnetic quantum number can be -1 or 0 or -1. so it cannot be same. Similarly, spin cannot be -1/2 or +1/2. So only quantum numbers which remain constant are principal quantum number and angular momemtum quantum number. So, correct option is A.

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