Skip to main content
Ch.5 - Periodicity & Electronic Structure of Atoms
McMurry - Chemistry 8th Edition
McMurry8th EditionChemistryISBN: 9781292336145Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoMcMurry 8th EditionCh.5 - Periodicity & Electronic Structure of AtomsProblema 110c
Capitolo 5, Problema 110c

Write the symbol, give the ground-state electron configuration, and draw an orbital-filling diagram for each of the following atoms. Use the abbreviation of the preceding noble gas to represent the inner-shell electrons. 
(c) The heaviest actinide metal

Guida verificata passo dopo passo
1
Identify the heaviest actinide metal. The actinide series consists of elements with atomic numbers from 89 (Actinium) to 103 (Lawrencium). The heaviest actinide metal is Lawrencium (Lr).
Write the symbol for Lawrencium, which is Lr.
Determine the ground-state electron configuration for Lawrencium. Start by using the noble gas preceding Lawrencium in the periodic table, which is Rn (Radon), and then add the electrons in the order of their energy levels up to Lawrencium's atomic number (103).
Construct the electron configuration using the noble gas abbreviation: [Rn] 5f14 7s2 7p1. This configuration shows that after the Radon core, Lawrencium fills the 5f orbital completely, adds two electrons to the 7s orbital, and one electron to the 7p orbital.
Draw the orbital-filling diagram based on the electron configuration. Represent each orbital as a box and each electron as an arrow. Fill the 5f orbitals with 14 electrons (7 boxes, each with two arrows), the 7s orbital with 2 electrons (one box, two arrows), and the 7p orbital with 1 electron (one box, one arrow).

Risposta video verificata per un problema simile:

Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
4m

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

Actinide Series

The actinide series consists of 15 elements from actinium (Ac, atomic number 89) to lawrencium (Lr, atomic number 103). These elements are characterized by the filling of the 5f orbitals and exhibit similar properties, including radioactivity and the ability to form complex compounds. Understanding the actinides is crucial for identifying the heaviest actinide metal, which is typically considered to be lawrencium.
Video consigliato:
Percorso guidato
02:02
Activity Series Chart

Electron Configuration

Electron configuration describes the distribution of electrons in an atom's orbitals. It is represented using a notation that indicates the energy levels and sublevels filled with electrons. For actinides, the electron configuration involves the 5f, 6d, and 7s orbitals, and it is essential to know how to write these configurations to accurately represent the ground state of the heaviest actinide metal.
Video consigliato:
Percorso guidato
01:33
Electron Configuration Example

Orbital-Filling Diagram

An orbital-filling diagram visually represents the arrangement of electrons in an atom's orbitals. It uses boxes or lines to depict orbitals and arrows to indicate the electrons, following the Pauli exclusion principle and Hund's rule. Creating an orbital-filling diagram for the heaviest actinide metal helps illustrate how electrons occupy the available orbitals, providing insight into the atom's chemical behavior.
Video consigliato:
Percorso guidato
04:12
Molecular Orbital Diagram
Pratica correlata
Domanda del libro di testo

Write the symbol, give the ground-state electron configuration, and draw an orbital-filling diagram for each of the following atoms. Use the abbreviation of the preceding noble gas to represent the inner-shell electrons. (a) The heaviest alkaline earth metal

727
views
Domanda del libro di testo

Given the subshells 1s, 2s, 2p, 3s, 3p and 3d, identify those that meet the following descriptions. (b) Can have ml = -1

339
views
Domanda del libro di testo
How many unpaired electrons are present in each of the following ground-state atoms? (a) O (b) Si (c) K (d) As
1300
views
Domanda del libro di testo

Given the subshells 1s, 2s, 2p, 3s, 3p and 3d, identify those that meet the following descriptions. (a) Has l = 2

639
views