Ücretsiz Kullanmaya Başla
PDF Downloads

Atomic number and mass number

Chemistry • Atoms & Subatomic Particles • Knowledge-Based • 1 questions

Atomic number and mass number Knowledge-Based Download PDF

Chemistry · Atomic Structure · Chemistry · Atoms & Subatomic Particles

1 Chemistry practice questions on Atomic number and mass number. Questions that assess core concepts and understanding.

Questions

  1. 1.

    An atom has a mass number of 39 and contains 20 neutrons in its nucleus. What is the atomic number of this atom?

    • A) 59
    • B) 20
    • C) 19
    • D) 10