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Grade 7 Science Quiz App Download - Atoms and Atom Model e-Book

Class 7 Science MCQs - Chapter 1

Atoms and Atom Model Quiz Questions & Answers PDF Download - 23

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The Atoms and atom model Quiz Questions and Answers PDF (Atoms and Atom Model Quiz PDF e-Book) download Ch. 1-23 to learn Grade 7 Science Course. Solve Mass Number and Isotopes MCQs PDF, Atoms and Atom Model Quiz Questions and Answers to study homeschool online courses. The Atoms and Atom Model Quiz App Download: Free Grade 7 Science App to learn mass number and isotopes, chemical formulas, atoms and elements, ionic bonds, electron levels test prep for online certificate courses.

The Quiz: The 'isotope' carbon-12 makes up about "Atoms and Atom Model" App (iOS, Android) with answers: 80% of carbon on earth, 90% of carbon on earth, 99% of carbon on earth, and 89% of carbon on earth to study homeschool online courses. Study Mass Number and Isotopes MCQ Questions, download Amazon e-Book (Free Sample) for free online classes.

Atoms and Atom Model Exam Questions and Answers PDF Download: Test 23

MCQ: 111

The 'isotope' carbon-12 makes up about

  1. 90% of carbon on earth
  2. 80% of carbon on earth
  3. 99% of carbon on earth
  4. 89% of carbon on earth
MCQ: 112

One molecule of carbon dioxide consists of

  1. one carbon and two oxygen atoms
  2. one carbon and oxygen atom
  3. two carbon and one oxygen atom
  4. two carbon and one oxygen atoms
MCQ: 113

Atoms of different elements differ from each other because of

  1. difference in color
  2. difference in size
  3. difference in shape
  4. difference in particle numbers
MCQ: 114

When salt is formed, sodium

  1. gives an electron to chlorine
  2. takes an electron from chlorine
  3. shares an electron with chlorine
  4. takes a proton from chlorine
MCQ: 115

In an atom of carbon, electronic configuration is

  1. 2 electrons in K shell and 4 in M shell
  2. 2 electrons in L shell and 4 in M shell
  3. 2 electrons in K shell and 4 in L shell
  4. 4 electrons in K shell and 2 in L shell

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Atoms and Atom Model Apps (Android & iOS)

Atoms and Atom Model App

7th Grade Science Apps (Android & iOS)

7th Grade Science App

Earth Science Apps (Android & iOS)

Earth Science App

8th Grade Science Apps (Android & iOS)

8th Grade Science App