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Atomic number and mass number

Chemistry • Atoms & Subatomic Particles • Transitional Reasoning • 1 questions

Atomic number and mass number Transitional Reasoning Download PDF

Chemistry · Atomic Structure · Chemistry · Atoms & Subatomic Particles

1 Chemistry practice questions on Atomic number and mass number. Questions that build towards applied reasoning.

Questions

  1. 1.

    In a laboratory investigation of atomic structure, a researcher analyzes two neutral atoms designated as X and Y. Atom X has an atomic number of 15 and contains 16 neutrons in its nucleus. Atom Y is an isobar of atom X, meaning both atoms have the same mass number, but atom Y has 1 more neutron than atom X. Based on this information, what are the atomic number and the number of neutrons for atom Y?

    • A) Atomic number: 16, Neutrons: 15
    • B) Atomic number: 15, Neutrons: 17
    • C) Atomic number: 14, Neutrons: 16
    • D) Atomic number: 14, Neutrons: 17