Class 9 Subjects

Grade 9 Chemistry MCQs

Grade 9 Chemistry MCQ PDF - Chapter

Structure of Atoms Interview Questions with Answers PDF p. 4

Solve Structure of atoms worksheets with answers, structure of atoms trivia questions with answers PDF to learn grade 9 chemistry worksheet 4 for courses online. Atomic Structure Experiments MCQs, structure of atoms quiz questions and answers for distance learning. "Structure of Atoms Book" PDF: atomic structure experiments, isotopes test prep for online classes.

"α particles are" Multiple Choice Questions (MCQ) on structure of atoms with choices doubly positively charged, positively charged, negatively charged, and doubly negatively charged for distance learning. Solve atomic structure experiments quiz questions for school certificate programs for taking online classes.

MCQs on Structure of Atoms Quiz

MCQ: α particles are

positively charged
doubly positively charged
negatively charged
doubly negatively charged

MCQ: The energy of emitted light is equal to

sum of energy levels
difference between energies of orbits
product of energies of orbits
none of above

MCQ: Atoms having same atomic number but different atomic mass are called


MCQ: Rutherford bombarded thin gold foil with

α particles
β particles
γ particles

MCQ: Iodine-123 is used to

diagnose thyroid problem
image the brain
kill cancer cells
trace the blood flow