Concept explainers
(a)
Interpretation:
The cation with the electron configuration
Concept Introduction:
The electronic configuration is defined as the distribution of electrons in various atomic orbitals of the atom. The electrons that are present in an outermost orbital are known as valence electrons whereas those present in the orbitals with lower quantum numbers are called core electrons. The general outer electronic configuration of
Electrons are filled in orbitals in accordance with three rules: Aufbau principle, Hund’s rule, and Pauli’s exclusion principle. Aufbau principle states that electrons are filled in the orbitals from lower to higher energy level as follows:
Hund’s rule states that initially each orbital is singly occupied and then pairing occurs and Pauli’s exclusion principle states that the spin of two electrons in one orbital is always different.
(a)
Explanation of Solution
The electron configuration of the given ion is
(b)
Interpretation:
The cation with the electron configuration
Concept Introduction:
Refer to part (a).
(b)
Explanation of Solution
The electron configuration of the given ion is
(c)
Interpretation:
The cation with the electron configuration
Concept Introduction:
Refer to part (a).
(c)
Explanation of Solution
The electron configuration of the given ion is
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Chapter 8 Solutions
Chemistry: Principles and Practice
- Which of the following is the correct complete electron configuration notation for Ni2+ ? 1s22s22p63s23p6 1s22s22p63s23p63d6 1s22s22p63s23p64s23d10 1s22s22p63s23p63d8 1s22s22p63s23p64s23d8arrow_forwardWhat ion with charge +1 has an excited-state electron configuration of [He]2s22p33d1?arrow_forward54.Using complete subshell notation (1s22s22p6, and so forth), predict the electron configurations of the following ions. (a) N3– (b) Ca2+ (c) S– (d) Cs2+ (e) Cr2+ (f) Gd3+arrow_forward
- Chemists can identify the composition of some unknown salts by conducting a flame test. Whenpotassium salts are heated in a flame, a purple color is observed. This is due to the movement ofelectrons between energy levels. What is the electron configuration of a potassium atom at groundstate?(A) 1s22s22p63s23p64d1(B) 1s22s22p63s23p63d1(C) 1s22s22d63s23d64s1(D) 1s22s22p63s23p64s1arrow_forwardThe ground-state electron configuration of calcium is (a) 1s22s22p63s2 (b) 1s22s22p63s23p64s2 (c) 1s22s22p63s2 (d) [Ne]4s2arrow_forwardWhat atoms have the configuration (a) 1²23²2p, (b) 18²2s²2p63s², (c) 38²3pº? Explain.arrow_forward
- For each of the following atoms or ions, state the totalnumber of electrons, the number of valence electrons, andthe number of core electrons.(a) Ra2+ (b) Br (c) Bi2- (d) Ga+arrow_forward(1) What is the name of the element with a valence electron configuration of 2s22p3?fill in the blank 1(2) What is the name of the element with a valence electron configuration of 3s2?arrow_forwardIdentify the specific element that corresponds to each of the following electron configurations. (Type your answer using the symbol of the element.) (a) [He]2s²2p2 (b) [He]2s²2p! (c) [Rn]7s25f 46di (d) [He]2s!arrow_forward
- Use the noble-gas notation and write the ground-state electronic configurations of the following ions:(a) O2- (b) Tl3+ (c) V3+arrow_forwardUsing complete subshell notation (1s^22s^22p^6, and so forth), predict the electron configurations of the following ions. (a) N3– (b) Ca2+ (c) S– (d) Cs2+ (e) Cr2+ (f) Gd3+arrow_forwardWrite the symbol for the monatomic ion that has a charge of –1 and the condensed electron configuration [Ne]3s23p6.arrow_forward
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