Atoms and Atom Model MCQ Questions and Answers 25 PDF Download

Atoms and atom model Multiple Choice Questions and Answers (MCQs), atoms and atom model MCQs questions PDF to practice grade 7 science test 25 for online school programs. Practice "Common Ions" MCQs, atoms and atom model quiz questions and answers for school certificate. Learn atoms and elements, electron levels, uses of radioisotopes, valencies and valency table, ions and bonding test prep for free online classes.

"The number of elements discovered yet, is" Multiple Choice Questions (MCQ) on atoms and atom model with choices 107, 100, 110, and 117 for school certificate. Free science study guide for online learning common ions quiz questions for online school courses.

Atoms and Atom Model MCQs Quiz 25 PDF Download

MCQ: The number of elements discovered yet, is

  1. 100
  2. 107
  3. 110
  4. 117


MCQ: The symbol of "Beryllium" is

  1. Na
  2. Li
  3. Ba
  4. Be


MCQ: Radioisotopes can also be traced

  1. inside human body
  2. 10,000 kilometers underground
  3. in feces of animals
  4. in plants


MCQ: The valency of inert of rare gases is

  1. 8
  2. 10
  3. 0
  4. 5


MCQ: If we remove electron from the outer shell, the atom turns

  1. negative
  2. positive
  3. neutral
  4. anti negative