Atomic number and mass number Transitional Reasoning Download PDF
1 Chemistry practice questions on Atomic number and mass number. Questions that build towards applied reasoning.
Questions
- 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?

