Class 7 Science MCQs (Grade 7) From Textbook

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Class 7 Science MCQs – Practice Test 24 (Chapter 1)

Atoms and Atom Model Notes Questions with Answers PDF Download – Test 24

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The Atoms and atom model Notes Questions and Answers PDF (Atoms and Atom Model Quiz Answers PDF e-Book) download Ch. 1-24 to study Class 7 Science Course. Practice Ionic Bonds MCQ PDF, Atoms and Atom Model Quiz Questions and Answers to learn distance learning courses. The Class 7 Science Notes App to Download Free Atoms and Atom Model Notes App for ionic bonds, uses of radioisotopes, mass number and isotopes, atoms and elements test prep for online classes.

The MCQ: When the transfer of electrons takes place, the sodium and chlorine atoms turn into; "Class 7 Science Notes" App APK Download with answers: electrons and protons, ions, positrons and negatrons, and neutrons and photons to learn distance learning courses. Practice Ionic Bonds MCQ Questions, download Kobo e-Book (Free Chapter) for online school and college.

Atoms and Atom Model MCQs – Practice Test 24 PDF Download

MCQ: 116

When the transfer of electrons takes place, the sodium and chlorine atoms turn into

  1. ions
  2. electrons and protons
  3. positrons and negatrons
  4. neutrons and photons
MCQ: 117

The activity of organs in a human body can be studied by

  1. injected medicines in the body
  2. injected chip in human body
  3. injected radioisotope in human body
  4. injected monitors in the body
MCQ: 118

In element Uranium-235, the combined number of neutrons and protons is

  1. 92
  2. 235
  3. 35
  4. 200
MCQ: 119

'Chlorine' becomes an anion because

  1. it loses a proton
  2. it gains a proton
  3. it loses an electron
  4. it gains an electron
MCQ: 120

A material which is made up of one type of atom is known as

  1. element
  2. compound
  3. mixture
  4. molecule

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