Atoms and Atom Model Multiple Choice Questions 25 PDF Download

Learn atoms and atom model MCQs, grade 7 online science test 25, atoms and elements multiple choice questions and answers. Atoms and elements revision test has science worksheets, helping answer key with choices as 107, 100, 110 and 117 of multiple choice questions (MCQ) with atoms and elements quiz as the number of elements discovered yet, is for competitive exam prep, viva interview questions. Free science study guide to practice atoms and elements quiz to attempt multiple choice questions based test.

MCQs on Atoms and Atom Model Quiz PDF Download Worksheets 25

MCQ. The number of elements discovered yet, is

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

D

MCQ. The symbol of "Beryllium" is

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

D

MCQ. Radioisotopes can also be traced

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

A

MCQ. The valency of inert of rare gases is

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

C

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

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

B