This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Physics Part Ii > Class 12 Physics (Part Ii) Chapter 12 Atoms – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part Ii) Chapter 12 Atoms Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. According to Rutherford's model, centripetal force for the electron moving round the nucleus is provided by A) Nuclear force of attraction between electron and nucleus. B) Electrostatic force of attraction between positively charged nucleus and negatively charged electron. C) Gravitational force between heavy nucleus and lighter electron. D) Magnetic force between nuclear magnetic moment and electron magnetic moment. Show Answer Correct Answer: B) Electrostatic force of attraction between positively charged nucleus and negatively charged electron. 2. On the Periodic Table of Elements, this is the number below the chemical symbol and tells you how much mass is in a certain number of atoms for that element (you'll need to use this a LOT in high school chemistry). A) Atomic number. B) Mass. C) Chemical symbol. D) Atomic mass. Show Answer Correct Answer: D) Atomic mass. 3. The ..... is based on the number of protons in the nucleus of the atom. A) Periodic table of the elements. B) Atomic number. C) Atomic structure. D) Atomic mass. Show Answer Correct Answer: B) Atomic number. 4. Which explains what happens when you rub your hair on a balloon? A) Protons move from your hair to the balloon and give the balloon a positive charge. B) Electrons move from your hair to the balloon and give the balloon a negative charge. C) Protons move from your hair to the balloon and give the balloon a negative charge. D) Electrons move from your hair to the balloon and give the balloon a positive charge. Show Answer Correct Answer: B) Electrons move from your hair to the balloon and give the balloon a negative charge. 5. Subatomic particle with no charge A) Electron. B) Neutron. C) Proton. D) Nucleus. Show Answer Correct Answer: B) Neutron. 6. What was the name given to Atoms by Proust A) Divisible Particles. B) Invisible Particles. C) Indivisible Particles. D) Molecules. Show Answer Correct Answer: C) Indivisible Particles. 7. How many moles of carbon are there in a pure diamond with mass 6g? A) 4.0mol. B) 2.0mol. C) 0.5mol. D) 1.0mol. Show Answer Correct Answer: C) 0.5mol. 8. These hang out in the nucleus and don't really affect the properties of the atom that much. They don't have any charge (so they can't use credit cards). A) Neutrons. B) Protons. C) Atomic numbers. D) Electrons. Show Answer Correct Answer: A) Neutrons. 9. Chemistry can best be defined as A) The study of chemical reactions. B) The study of physical laws. C) The study of atoms and molecules. D) The study of living things. Show Answer Correct Answer: C) The study of atoms and molecules. 10. Physical science is the study of matter and energy. It includes all but: A) Physics. B) Biology. C) Chemistry. D) None of the above. Show Answer Correct Answer: B) Biology. 11. ..... is an ELEMENT since it is only made up of one type of atom. A) Water. B) Air. C) Gold. D) Salt. Show Answer Correct Answer: C) Gold. 12. Planetary model of the atom was proposed by A) Neil Bohr. B) Pauli. C) J.J Thomson. D) Rutherford. Show Answer Correct Answer: D) Rutherford. 13. This is what holds atoms in a molecule and compound together. They can be ionic, covalent, or metallic (and you'll learn about these in high school chemistry). A) Electron cloud. B) Chemical bond. C) Chemical formula. D) Chemical symbol. Show Answer Correct Answer: B) Chemical bond. 14. Perpendicular distance between the initial velocity direction of alpha particle and center of the nucleus is called A) Impact parameter. B) Energy gap. C) Nuclear radius. D) Mean free path. Show Answer Correct Answer: A) Impact parameter. 15. Name the series of hydrogen atom which lies in U.V region A) Balmer. B) Lyman. C) Pfund. D) Paschen. Show Answer Correct Answer: B) Lyman. 16. What is the charge of an object with 12 protons and 4 electrons? A) +8. B) +16. C) -16. D) -8. Show Answer Correct Answer: A) +8. 17. The scientist who invented the classification system for the elements: A) Niels Bohr. B) Albert Einstein. C) Sir Isaac Newton. D) Dimitri Mendeleev. Show Answer Correct Answer: D) Dimitri Mendeleev. 18. Molecules move quickest in which state of matter A) Solid. B) Liquid. C) Gas. D) Solid, liquid and gas. Show Answer Correct Answer: C) Gas. 19. What is the main difference between protons and neutrons? A) Protons have a much smaller mass than neutrons. B) Protons have a much larger volume than neutrons. C) Protons have an electrical charge, but neutrons have no charge. D) Protons make up the nucleus, but neutrons orbit around the nucleus. Show Answer Correct Answer: C) Protons have an electrical charge, but neutrons have no charge. 20. Rutherford's nuclear atom model failed to explain A) The distribution of positive and negative charge inside the nucleus. B) Size of the nucleus. C) Size of the atom. D) Stability of the atom. Show Answer Correct Answer: D) Stability of the atom. 21. What are substances containing only one kind of atom called? A) Solutions. B) Mixtures. C) Elements. D) Compounds. Show Answer Correct Answer: C) Elements. 22. The transition from the state n = 3 to n = 1 in a hydrogen like atom results in ultraviolet radiation. Infrared radiation will be obtained in the transition from- A) 3 to 2. B) 2 to 1. C) 4 to 3. D) 4 to 2. Show Answer Correct Answer: C) 4 to 3. 23. Particle A has very little mass in comparison to Particle B. Both particles are in the same atom. Which is the best conclusion about Particles A and B? A) They have opposite charges. B) They are located in the nucleus together. C) Particle A has a negative charge, and Particle B is neutral. D) Particle A orbits the nucleus, and Particle B is located in the nucleus. Show Answer Correct Answer: D) Particle A orbits the nucleus, and Particle B is located in the nucleus. 24. When and where was John Dalton born? A) 1865, New York. B) 1766, England. C) 1788, Manchester. D) 1635, California. Show Answer Correct Answer: B) 1766, England. 25. These are what form chemical bonds as atoms share or take them from one another. They orbit the nucleus and have a negative charge (but they are still happy about things in general). A) Neutrons. B) Protons. C) Electron clouds. D) Electrons. Show Answer Correct Answer: D) Electrons. 26. Who was the first to call atoms atoms A) Einstein. B) John Dalton. C) Democritus. D) We dont know. Show Answer Correct Answer: C) Democritus. 27. For chemistry, the best way to think of this is how much stuff there is in a substance. For physics, the best way to think of this is its the measure of an object's resistance to a change in its motion. A) Atomic mass. B) Matter. C) Mass. D) Atomic number. Show Answer Correct Answer: C) Mass. 28. The ..... is a small, dense region at the center of the atom. It consists of positive protons and neutral neutrons, so it has an overall positive charge. A) Electrons. B) Nucleus. C) Neutrons. D) Protons. Show Answer Correct Answer: B) Nucleus. 29. This subatomic particle of an atom has a POSITIVE charge. A) Electron. B) Neutron. C) Proton. D) Amitron. Show Answer Correct Answer: C) Proton. 30. What subatomic particle is represented by this charge (-): A) Neutron. B) Proton. C) Electron. D) None of the above. Show Answer Correct Answer: C) Electron. 31. Electrons have what charge? A) Positive. B) Negative. C) Neutral. D) No charge. Show Answer Correct Answer: B) Negative. 32. This subatomic particle of an atom has NO charge. A) Proton. B) Neutron. C) Amitron. D) Electron. Show Answer Correct Answer: B) Neutron. 33. If 18g of Water is DECOMPOSED, how much Oxygen and how much Hydrogen are obtained? A) 16g of Hydrogen, 18g of Oxygen. B) 16g of Oxygen, 2g of Hydrogen. C) 16g of Hydrogen, 2g of Oxygen. D) 12g of Oxygen, 6g of Hydrogen. Show Answer Correct Answer: B) 16g of Oxygen, 2g of Hydrogen. 34. The ionization potential of hydrogen atom is A) -13.6 V. B) 13.6 eV. C) 13.6V. D) -13.6 eV. Show Answer Correct Answer: C) 13.6V. 35. Who said matter is made up of indivisible particles called atoms? A) Dalton. B) Ancient Greeks. C) Rutherford. D) Thomson. Show Answer Correct Answer: B) Ancient Greeks. 36. What is the charge of electrons? A) Positive (+). B) No charge. C) Negative (-). D) Neutral. Show Answer Correct Answer: C) Negative (-). 37. This tells you how many protons are in each atom of a specific element and how many electrons there are in each unreacted atom from that element. A) Chemical formula. B) Atomic number. C) Atomic mass. D) Chemical symbol. Show Answer Correct Answer: B) Atomic number. 38. What is the full name of Proust? A) Joseph L. Proust. B) Democritus L. Proust. C) Leucippus Proust. D) Lavoisier Proust. Show Answer Correct Answer: A) Joseph L. Proust. 39. The subatomic particles are called: A) Protons, nucleus and electrons. B) Protons, electrons and neutrons. C) Protons, positives and negatives. D) Cloud, shell and quarks. Show Answer Correct Answer: B) Protons, electrons and neutrons. 40. Why do the electrons surround the nucleus? A) The negative electrons are attracted to the neutral neutrons. B) The negative electrons are repelled by the positive protons. C) The negative electrons are attracted to the positive protons. D) The negative electrons are repelled by the neutral neutrons. Show Answer Correct Answer: C) The negative electrons are attracted to the positive protons. 41. Inside the nucleus of an atom A) Almost all the mass of an atom is concentrated. B) Entire positive charge is distributed. C) Nuclear force exists. D) All are correct. Show Answer Correct Answer: D) All are correct. 42. The cloud-like space that electrons travel around: A) Oort cloud. B) Neutrons. C) Shell. D) Nucleus. Show Answer Correct Answer: C) Shell. 43. Which sub atomic particles are in the nucleus A) Proton and nucleus. B) Electron and neutron. C) Atoms and ice cream. D) Proton and neutron. Show Answer Correct Answer: D) Proton and neutron. 44. How many postulates of Dalton are there? A) 3. B) 4. C) 6. D) 8. Show Answer Correct Answer: C) 6. 45. How does an atom change if all of its electrons are removed? A) The atom's mass increases. B) The atom becomes negatively charged. C) The atom's volume increases. D) The atom becomes positively charged. Show Answer Correct Answer: D) The atom becomes positively charged. 46. TOTAL ENERGY of electron in nth stationary orbit if hydrogen atom is A) $\frac{-13.6}{n^2}$. B) $\frac{-13.6}{n^2}$. C) $\frac{13.6}{n^2}$. D) $\frac{13.6}{n^2}$. Show Answer Correct Answer: A) $\frac{-13.6}{n^2}$. 47. The basic building blocks of the universe. The smallest and most pure substances that can be found. A) Elements. B) Compounds. C) Atoms. D) Molecules. Show Answer Correct Answer: A) Elements. 48. According to Rutherford's model, nucleus of an atom is A) Positively charged. B) Negatively charged. C) Electrically neutral. D) Positively or negatively charged depending on atomic number. Show Answer Correct Answer: A) Positively charged. 49. What is the atomic mass of an atom? A) The number of electrons. B) The number of protons and neutrons. C) The number of protons and electrons. D) The number of neutrons and electrons. Show Answer Correct Answer: B) The number of protons and neutrons. 50. What causes objects to change to different states? A) Heat. B) Electricity. C) Movement. D) Decay. Show Answer Correct Answer: A) Heat. 51. A molecule is made up of ..... or more atoms. A) 2. B) 1. C) 3. D) 4. Show Answer Correct Answer: A) 2. 52. The rows or periods on the periodic table describe: A) The same number of protons. B) The same number of shells. C) The same mass. D) The same number of outer electrons. Show Answer Correct Answer: B) The same number of shells. 53. What are the common 3 states of matter? (Yes, this is a lie, there are 4. In fact, the 4th, plasma, is the most common thing found in our entire universe because all stars are made of it and the total mass of stars far outweighs the mass of other objects in space. Grrrrr.) A) Solid, gas, vapor. B) Density, solubility, boiling point. C) Liquid, solid, fire. D) Solid, liquid, gas. Show Answer Correct Answer: D) Solid, liquid, gas. 54. The abbreviation for an element: A) Element name. B) Chemical symbol. C) Atomic number. D) Atomic symbol. Show Answer Correct Answer: B) Chemical symbol. 55. Which of these is the simplest atom? A) Hydrogen. B) Chlorine. C) Oxygen. D) Uranium. Show Answer Correct Answer: A) Hydrogen. 56. What is emitted during Alpha Radiation? A) A helium nuclei. B) Positrons. C) Gamma Rays. D) A helium atom. Show Answer Correct Answer: A) A helium nuclei. 57. What is the study of matter called? A) Astronomy. B) Physics. C) Biology. D) Chemistry. Show Answer Correct Answer: D) Chemistry. 58. What charge do neutrons have? A) Negative (-). B) Neutral. C) Positive (+). D) No charge. Show Answer Correct Answer: D) No charge. 59. Atoms are more than ..... times smaller than the width of a hair. A) 100. B) 10. C) 10, 000. D) 1, 000. Show Answer Correct Answer: C) 10, 000. 60. This is anything that has mass and takes up space (meaning it has a volume). A) Energy. B) Mass. C) Matter. D) Element. Show Answer Correct Answer: C) Matter. ← PreviousNext →Related QuizzesScience QuizzesClass 12 QuizzesClass 12 Physics (Part Ii) Chapter 12 Atoms Quiz 1Class 12 Physics (Part Ii) Chapter 12 Atoms Quiz 3Class 12 Physics (Part Ii) Chapter 10 Wave Optics QuizClass 12 Physics (Part Ii) Chapter 11 Dual Nature Of Radiation And Matter QuizClass 12 Physics (Part Ii) Chapter 13 Nuclei QuizClass 12 Physics (Part Ii) Chapter 14 Semiconductor Electronics Materials QuizClass 12 Physics (Part Ii) Chapter 9 Ray Optics And Optical Instruments Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books