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Atoms and Atom Model Quiz Questions Online p. 23

Study Atoms and atom model quiz questions and answers, atoms and atom model MCQ questions with answers PDF to solve grade 7 science quiz 23 for online certification. Mass Number and Isotopes MCQs, atoms and atom model quiz questions and answers for taking online classes. "Atoms and Atom Model Quiz" PDF Book: mass number and isotopes, chemical formulas, atoms and elements, ionic bonds, electron levels test prep for online learning.

"The 'isotope' carbon-12 makes up about" Multiple Choice Questions (MCQ) on atoms and atom model with choices 80% of carbon on earth, 90% of carbon on earth, 99% of carbon on earth, and 89% of carbon on earth for taking online classes. Learn mass number and isotopes quiz questions for school certificate programs for distance learning.

Atoms and Atom Model Questions and Answers

MCQ: The 'isotope' carbon-12 makes up about

90% of carbon on earth
80% of carbon on earth
99% of carbon on earth
89% of carbon on earth

MCQ: One molecule of carbon dioxide consists of

one carbon and two oxygen atoms
one carbon and oxygen atom
two carbon and one oxygen atom
two carbon and one oxygen atoms

MCQ: Atoms of different elements differ from each other because of

difference in color
difference in size
difference in shape
difference in particle numbers

MCQ: When salt is formed, sodium

gives an electron to chlorine
takes an electron from chlorine
shares an electron with chlorine
takes a proton from chlorine

MCQ: In an atom of carbon, electronic configuration is

2 electrons in K shell and 4 in M shell
2 electrons in L shell and 4 in M shell
2 electrons in K shell and 4 in L shell
4 electrons in K shell and 2 in L shell

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