Atoms and Atom Model Multiple Choice Questions and Answers 23 PDF Book Download

Atoms and atom model MCQs, atoms and atom model quiz answers 23 to learn elementary school science courses online. Chemical formulas multiple choice questions (MCQs), atoms and atom model quiz questions and answers for online elementary education degree. Mass number and isotopes, chemical formulas, atoms and elements, ionic bonds, electron levels test for elementary school teaching certification.

Learn elementary school science multiple choice questions (MCQs): Mass number and isotopes, chemical formulas, atoms and elements, ionic bonds, electron levels, with choices one carbon and oxygen atom, one carbon and two oxygen atoms, two carbon and one oxygen atom, and two carbon and one oxygen atoms for online elementary education degree. Free science study guide for online learning chemical formulas quiz questions to attempt multiple choice questions based test.

MCQ on Atoms and Atom Model Worksheets 23 PDF Book Download

MCQ: '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

C

MCQ: 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

A

MCQ: 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

D

MCQ: 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

A

MCQ: 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

C