This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom – Quiz 35 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 35 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which subatomic particle is neutral, or has no charge? A) Proton. B) Electron. C) Neutron. D) None of the above. Show Answer Correct Answer: C) Neutron. 2. Compared to the charge and mass of a proton, an electron has A) The same charge and a smaller mass. B) The same charge and the same mass. C) Opposite charge and smaller mass. D) Opposite charge and the same mass. Show Answer Correct Answer: C) Opposite charge and smaller mass. 3. Who proposed that the atom consists mostly of empty space? A) Bohr. B) Dalton. C) Rutherford. D) Chadwick. Show Answer Correct Answer: C) Rutherford. 4. What is the maximum number of electrons that contain the valuesn=4 l=3 A) 12. B) 3. C) 7. D) 14. Show Answer Correct Answer: D) 14. 5. Tin, Sn, is a soft white metal. It has a low melting point compared with other metals. Tin is widely used as a coating for cans of food. Which statement accurately describes atoms of tin? A) Tin atoms have 50 protons. B) Tin atoms have five valence electrons. C) Tin atoms have 119 neutrons. D) Tin atoms have 68 electrons. Show Answer Correct Answer: A) Tin atoms have 50 protons. 6. Millikan's oil drop experiment could find: A) Charge of electron. B) Charge-to-mass ratio of electron. C) Charge-to-mass ratio of proton. D) Mass of electron. Show Answer Correct Answer: A) Charge of electron. 7. Of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu.What is the average mass of this element? A) 74.92 amu. B) 24.97 amu. C) 75.01 amu. D) 74.51 amu. Show Answer Correct Answer: A) 74.92 amu. 8. It is also known as the core of an atom A) Nucleus. B) Orbit. C) Radical. D) None of the above. Show Answer Correct Answer: A) Nucleus. 9. Valency of Cl is? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: A) 1. 10. If a particle undergoes accelrated motion, then it must radiate energy thereby electrons should loose energy and fall inside.This is a drawback of: A) Rutherford model. B) Roopak sir model. C) Bohr model. D) Your model. Show Answer Correct Answer: A) Rutherford model. 11. Which orbital will be filled first:4s or 3d? A) 4s. B) 3d. C) 4p. D) 5p. Show Answer Correct Answer: A) 4s. 12. In Rutherford's Gold Foil experiment, what particle was aimed at the gold foil? A) Alpha particles. B) Beta particles. C) Photons. D) Marbles. Show Answer Correct Answer: A) Alpha particles. 13. Which of the following cannot be broken down into something simpler? A) A compound. B) An element. C) A mixture. D) None of the above. Show Answer Correct Answer: B) An element. 14. An atom with atomic number 6 would have how many protons A) 6. B) 12. C) 3. D) Cannot be determined. Show Answer Correct Answer: A) 6. 15. A certain atom has 11 electrons, 8 neutrons, and a charge of-1. What is its atomic mass? A) 19. B) 15. C) 11. D) 18. Show Answer Correct Answer: D) 18. 16. Am element has 27 protons, 27 electrons, and 32 neutrons. Calculate the atomic mass of this element. A) 59. B) 54. C) 86. D) 32. Show Answer Correct Answer: A) 59. 17. The negatively charged particle is A) Proton. B) Neutron. C) Electron. D) None of the above. Show Answer Correct Answer: C) Electron. 18. An atom is most stable when it has how many valence electrons? A) 2. B) 4. C) 6. D) 8. Show Answer Correct Answer: D) 8. 19. What is the difference between the number of electrons in an atom of Tin (Sn) which has an atomic number of 50, and the number of electrons in an atom of Chlorine (Cl) which has an atomic number of 17. A) There is no difference. B) 33. C) There is not enough information to answer this question. D) 47. Show Answer Correct Answer: B) 33. 20. Which statement correctly describes the location and charge of the electrons in an atom? A) Electrons are located inside the nucleus and have no charge. B) Electrons are located outside the nucleus and have no charge. C) Electrons are located inside the nucleus and have a negative charge. D) Electrons are located outside the nucleus and have a negative charge. Show Answer Correct Answer: D) Electrons are located outside the nucleus and have a negative charge. 21. Which particle has a similar mass to a proton? A) Electron. B) Neutron. C) Photon. D) Marble. Show Answer Correct Answer: B) Neutron. 22. Symbol of proton A) P. B) P. C) All the above. D) None of the above. Show Answer Correct Answer: A) P. 23. Where does the atom have its most weight/mass? A) In the electron cloud. B) In the nucleus with electrons and protons. C) In the nucleus with protons and neutrons. D) It doesn't have mass. Show Answer Correct Answer: C) In the nucleus with protons and neutrons. 24. A wave with a large wavelength will have a ..... frequency and ..... energy A) High, low. B) High, high. C) Low, high. D) Low, low. Show Answer Correct Answer: D) Low, low. 25. Electron configuration of carbon is A) 2, 6. B) 2, 4. C) 2, 2. D) 2, 5. Show Answer Correct Answer: B) 2, 4. ← PreviousNext →Related QuizzesClass 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 1Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 2Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 3Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 4Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 5Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 6Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 7Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 8Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 9Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books