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Valence electrons

Chemistry • Electrons in Atoms • Original Scenario-Based • 1 questions

Valence electrons Original Scenario-Based Download PDF

Chemistry · Atomic Structure · Chemistry · Electrons in Atoms

1 Chemistry practice questions on Valence electrons. Questions built around original scenarios.

Questions

  1. 1.

    During an exploratory expedition to the crystalline crust of asteroid Vespera-9, planetary chemist Dr. Aris isolates an elemental specimen whose neutral atoms each contain exactly 15 protons. To program the automated molecular synthesizer for chemical bond formation, Dr. Aris must establish the number of electrons residing in the outermost shell of each atom. Based on the principles of atomic structure, how many valence electrons does a neutral atom of this element possess?

    • A) 3
    • B) 2
    • C) 5
    • D) 8