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Electron configuration practice
An electron configuration practice for 11th-grade students focusing on energy levels, orbitals, and noble gas notation. Students identify correct configurations, determine filled subshells, order orbitals by energy, and match elements to noble gas cores through varied question formats.
By Edform · Chemistry · Grade 11 · Published Oct 15, 2026 · New
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Questions
- Which of the following is the correct electron configuration for a neutral atom of sulfur (S, atomic number 16)?
- Which of the following elements have a completely filled p subshell in their ground-state electron configurations? Select all that apply.
- Arrange the following orbitals in order of increasing energy (lowest to highest) for a multi-electron atom.
- Match each element to its correct noble gas core in noble gas notation.
- Fill in the blanks with the correct numbers: The electron configuration for magnesium is 1s_ 2s_ 2p_ 3s_.
- Select the correct orbital that is being filled after 4s in the periodic table.
- Sort the following elements based on whether their outermost electron is in an s or p orbital.
- Mark each statement about electron configuration as true or false.
- What is the noble gas notation for the electron configuration of iron (Fe)?
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