Class 7 Science MCQs - Chapter 2

Atoms and Atom Model Multiple Choice Questions (MCQ) PDF - 10

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Free Atoms and atom model Multiple Choice Questions (MCQs), Atoms and Atom Model MCQs PDF Download, Book Test 2-10 to learn class 7 science online courses. Study Electron Levels Multiple Choice Questions and Answers (MCQs) PDF, atoms and atom model quiz questions and answers for homeschool certification courses. The Atoms and Atom Model MCQ App Download: Free educational app for electron levels, covalent bonds, mass number and isotopes, common ions, uses of radioisotopes test prep for online education.

The MCQs: Atomic number of sodium is 11 and its atomic mass is 23 and the number of protons and neutrons in an atom of sodium is; "Atoms and Atom Model" App Download Android & iOS (Free) with answers 11 and 23, 11 and 11, 23 and 11 and 11 and 12 for homeschool certification courses. Practice electron levels quiz questions, download Apple Book (Free Sample) for free online classes.

Atoms and Atom Model Questions & Answers PDF Download: MCQ Quiz 10

MCQ 46: The atomic number of sodium is 11 and its atomic mass is 23 and the number of protons and neutrons in an atom of sodium is

11 and 11
11 and 23
23 and 11
11 and 12

MCQ 47: Most of the covalent compounds are found in

solid state
gaseous state
liquid state
both in liquid and gaseous state

MCQ 48: The radioactive isotope of carbon is

carbon-12
carbon-13
carbon-14
carbon-6

MCQ 49: The ionic chemical formula of potassium is

K^-
K⁺
K_-
K₊

MCQ 50: Nuclear batteries are

small in size
very heavy
harmful
enlarge in size

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