Which type of orbital is NOT allowed? 3s; 5f; 4d; 3f; 6p Which of the following
ID: 996682 • Letter: W
Question
Which type of orbital is NOT allowed? 3s; 5f; 4d; 3f; 6p Which of the following compounds contains both ionic and covalent bonds? SO2; HCI; BF3; Na2C03; MgCI2 According to the building-up (Aufbau) principle, which of the following orbitals will be filled first? 5p; 5d; 5s; 4d; 4f The ground state electron configuration of an FeA3- ion is ls^2, 2s^2,2p^6, 3s^2, 3p^6,3d^5. Therefore FeA3- is: diamagnetic; paramagnetic with 1 unpaired electron; paramagnetic with 3 unpaired electrons; paramagnetic with 4 unpaired electrons; paramagnetic with 5 unpaired electrons A solution is an example of: a compound; an element; a homogeneous mixture; a heterogeneous mixture; none of the above The C2H2 molecule has: 4 pie bond and 1 sigma bond; 4 pie bond and 3 sigma bond; 1 pie bond and 3 sigma bond; 2 pie bond and 4 sigma bond; 2 pie bond and 3 sigma. The valence shell electron configuration for the third period element In Group VIIA is: 3sA2,4pA5; 4sA2, 3pAS; 2sA2,3pAS; 4sA2,4PA5; 3sA2, 3pA5 Which one of the following species exhibits delocalized bonding (resonance)? CO2; H2S; O2; O3; C2H4 Which of the following atoms has the smallest atomic radius? K; C; F; N; B Which__of the following species has the highest ionization energy? K; Ar; Br; Cl; Ca which of the following elements do you expect 20Ca to resemble the MOST in its chemical properties? 19K; 38Sr; 21Sc; 18Ar; UNa Which two species are isoelectronic? Br-and CI-; Mg2+ and Na+; CI- and Na+; O2- and CI-; AI3+ and Ar In the Lewis structure for IBr2-, the number pairs of non bonding electrons on the iodine atom is: 1; 3; 2; 4 ? The geometric arrangement of the atoms in the BF3 is: trigonal planar; trigonal pyramidal; tetrahedral; linear; square planar All of the following gaseous molecules are linear except: HCN; HOH; HOOH; CO2; XeF2 Which of the following compounds has a zero dipole moment? HCI; CS2; H2O; NH3; SO2 The correct name for Ba(NO3)2 is: Barium nitrite; Barium nitrate; ???Explanation / Answer
33.
Orbitals must follow:
l = n-1 rule
that is
n = 1,2,3,4 and l = 0,1,2,3
note that
l = 0, s
l = 1, p
l = 2, d and so on...
then
3s -- > valid since n = 3 and l = 0
5f --> valid since n = 5, l = 3
4d ---> valid since n = 4 l = 2
3f --> not valid since n = 3 and l = 3; and n = l is not valid
6p -> valid since n = 6 and l = 1
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