10. Periodic Properties of the Elements
The Electron Configurations: Exceptions Practice Problems
10. Periodic Properties of the Elements
The Electron Configurations: Exceptions Practice Problems
5 problems
1PRACTICE PROBLEM
Consider the following illustration of the periodic table. Identify which among the highlighted elements has an anomalous ground-state electron configuration. Justify your answer.
2PRACTICE PROBLEM
What is the electron configuration for a roentgenium atom?
3PRACTICE PROBLEM
Palladium (Pd) has an odd electron configuration. Write the complete electron configuration of Pd in order of increasing orbital energy.
4PRACTICE PROBLEM
Which one of the following statements is/are true?
1. Selenium (Se) has the electron configuration [Ar]4s24d104p3
2. Silver (Ag) has the electron configuration [Kr] 5s14d10
3. Chromium (Cr) has the electron configuration [Ar] 4s13d5
5PRACTICE PROBLEM
Which is the first element in the periodic table to have a half-filled d subshell in the ground state?