Deep within an orbital quantum forge, an astrochemist stabilizes a synthetic atom of an exotic matter candidate named stellar-lith. Particle diagnostics report that this atom contains 82 protons and 126 neutrons tightly bound within its nucleus, surrounded by a cloud of 82 electrons. Based on the fundamental definitions of atomic structure, what are the atomic number and mass number of this atom?

A) Its atomic number is 126, and its mass number is 208.

B) Its atomic number is 82, and its mass number is 208.

C) Its atomic number is 208, and its mass number is 126.

D) Its atomic number is 82, and its mass number is 126.

Atomic number and mass number Original Scenario-Based Practice

Chemistry · Atomic Structure · Chemistry · Atoms & Subatomic Particles

1 Chemistry practice questions on Atomic number and mass number. Questions built around original scenarios.

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Atomic Structure · Chemistry

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