This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 14 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What particle was used in the gold foil experiment? A) Beta Particle. B) Alpha particle. C) Gamma ray. D) High energy electron. Show Answer Correct Answer: B) Alpha particle. 2. Strontium was first isolated by ..... A) Michael Faraday. B) Sir Humphry Davy. C) Marie Curie. D) James Chadwick. Show Answer Correct Answer: B) Sir Humphry Davy. 3. What is unique about the number of neutrons in a normal hydrogen atom? A) It does not have any neutrons. B) It has more neutrons than protons. C) It has an equal number of neutrons and protons. D) It has an equal number of neutrons and electrons. Show Answer Correct Answer: A) It does not have any neutrons. 4. An element with a mass number of 12 and an atomic number of 6 has how many protons? A) 5. B) 8. C) 6. D) 10. Show Answer Correct Answer: C) 6. 5. Rutherford's $\alpha$-particle scattering experiment showed that (i) electrons have negative charge (ii) the mass and positive charge of the atom is concentrated in the nucleus (iii) neutron exists in the nucleus (iv) most of the space in atom is empty Which of the above statements are correct? A) (i) and (iii). B) (ii) and (iv). C) (i) and (iv). D) (iii) and (iv). Show Answer Correct Answer: B) (ii) and (iv). 6. Formula for finding the No. of Neutrons = A) Mass Number-Atomic Number. B) Mass Number + Atomic Number. C) Atomic Number-Mass Number. D) Mass Number-No. of Protons. Show Answer Correct Answer: A) Mass Number-Atomic Number. 7. The pair of ions having same electronic configuration is ..... A) Cr$^{+3}$, Fe$^{+3}$. B) Fe$^{+3}$, Mn$^{+2}$. C) Fe$^{+3}$, Co$^{+3}$. D) Sc $^{+3}$, Cr$^{+3}$. Show Answer Correct Answer: B) Fe$^{+3}$, Mn$^{+2}$. 8. D atom have 12 protons. Which group and period does element D belong to in periodic table? A) Group 12, Period 3. B) Group 2, Period 3. C) Group 12, Period 13. D) Group 2, Period 13. Show Answer Correct Answer: B) Group 2, Period 3. 9. What is the energy order of orbitals in Aufbau principle? A) 1s < 2s < 2p < 3s < 3p < 4s < 3d. B) 1s < 2s < 2p < 3s < 3p < 3d < 4s. C) 1s < 2s < 2p < 3s < 3p < 3d < 4p. D) 1s < 2s < 2p < 3s < 3p < 3d < 4s < 4p. Show Answer Correct Answer: A) 1s < 2s < 2p < 3s < 3p < 4s < 3d. 10. Atomic models have been improved over the years. Arrange the following atomic models in the order of their chronological order (i) Rutherford's atomic model (ii) Thomson's atomic model (iii) Bohr's atomic model A) (i), (ii) and (iii). B) (ii), (iii) and (i). C) (ii), (i) and (iii). D) (iii), (ii) and (i). Show Answer Correct Answer: C) (ii), (i) and (iii). 11. The proton number of an element X is 28. The Y$^{2+}$ ion is isoelectronic with X. Which of the following combination is correct? A) Y$^{2+}$ = 1s$^{2}$2s$^{2}$2p$^{6}$3s$^{2}$3p$^{6}$3d$^{10}$. B) X = 1s$^{2}$2s$^{2}$2p$^{6}$3s$^{2}$3p$^{6}$3d$^{10}$. C) Y = 1s$^{2}$2s$^{2}$2p$^{6}$3s$^{2}$3p$^{6}$3d$^{10}$. D) X$^{2+}$ = 1s$^{2}$2s$^{2}$2p$^{6}$3s$^{2}$3p$^{6}$3d$^{10}$. Show Answer Correct Answer: A) Y$^{2+}$ = 1s$^{2}$2s$^{2}$2p$^{6}$3s$^{2}$3p$^{6}$3d$^{10}$. 12. Which quantum number determines the shape of orbitals? A) L. B) N. C) M. D) S. Show Answer Correct Answer: B) N. 13. In J J Thomson model A) The seeds are protons. B) The seeds are electrons. C) The seeds are cathode rays. D) The seeds are negative rays. Show Answer Correct Answer: B) The seeds are electrons. 14. The center of an atom, usually made of protons and neutrons A) Nucleus. B) Proton. C) Atomic Number. D) Isotope. Show Answer Correct Answer: A) Nucleus. 15. ARGON AND CALCIUM ARE PAIR OF A) ISOTOPES. B) ISOBARS. C) ISOMERS. D) ISOTONES. Show Answer Correct Answer: B) ISOBARS. 16. ..... were not present in Thomson's model A) Protons. B) Protons and Electrons. C) Electrons. D) Neutrons. Show Answer Correct Answer: D) Neutrons. 17. What types of particles are found inside the nucleus surrounded by the atom's cloud? A) Positively charged particles and negatively charged particles. B) Negatively charged particles only. C) Neutral particles and positively charged particles. D) Positively charged particles only. Show Answer Correct Answer: C) Neutral particles and positively charged particles. 18. Number of unpaired electrons in N2+ A) 3. B) 1. C) 2. D) 0. Show Answer Correct Answer: B) 1. 19. If the value of azimuthal quantum number of an electron is 2, then which of the following values of magnetic quantum numbers is not permissible A) 3. B) 2. C) 0. D) 1. Show Answer Correct Answer: A) 3. 20. What will be the wavelength of a ball of mass 0.1 kg moving with a velocity of 10m/s A) 300nm. B) 6.67X10$^{-34}$m. C) 6.67X10$^{-25}$m. D) 6.67X10$^{-27}$m. Show Answer Correct Answer: B) 6.67X10$^{-34}$m. 21. What is the electrical charge of an electron? A) Positive. B) Negative. C) Neutral. D) All of the above. Show Answer Correct Answer: B) Negative. 22. He developed the planetary model of the atom. A) Rutherford. B) Bohr. C) Chadwick. D) Dalton. Show Answer Correct Answer: A) Rutherford. 23. What did further experiments by Rutherford identify in the nucleus? A) Orbiting electrons. B) Electrons. C) Neutrons. D) Protons. Show Answer Correct Answer: D) Protons. 24. Electron in an excited state, may return to ground state by emitting energy during its transmission. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 25. Calculate mass of a photon with wavelength 3.6 angstrom A) 6.2X10$^{-29}$kg. B) 6.2X10$^{-29}$gm. C) 6.2gm. D) 6.2X10$^{-35}$kg. Show Answer Correct Answer: A) 6.2X10$^{-29}$kg. ← 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