FBQ1: The nature of the charge on Gamma rays is ---------charge Answer: Neutral FBQ2: The type of charge on Beta ray is ----------- Answer: negative FBQ3: Low ionising power on gases is found on.............ray Answer: Beta FBQ4: The nature of the charge on an electron is ------------ Answer: Negative FBQ5: The magnitude of the charge is the same on a proton and an ............. Answer: Electron FBQ6: The constituents of the atom are............., electrons and neutrons Answer: Protons FBQ7: The relative atomic mass of an element is the mass of one atom of the element compared to (1/12) of the mass of one atom of carbon - 12 .......... Answer: Isotopes FBQ8: Mass spectrometer is the instrument used to determine fairly accurately the relative atomic masses of .......... Answer: Elements FBQ9: When two or more elements combine chemically in fixed proportion by mass, it results to ...... Answer: compound FBQ10: The ..........of compounds and the elements from which they are formeddiffer from each other Answer: Properties FBQ11: Non metals are .......and gases Answer: Solids FBQ12: The process in which two or more light nuclei combine to form a heavier nucleus with a release of energy is known as.......... fussion Answer: Nuclear   FBQ13: Electrovalent bonding involves electron transfer from the valence shell of one ......to the valence shell of the other Answer: Atom FBQ14: The process in which the nucleus of a heavy element is spilt into two nuclei of nearly equal mass with a release of energy and radiation is known as nuclear ....... Answer: Fission FBQ15: The path of deflection of Alpha rays is towards a negative ...... Answer: Pole FBQ16: The path on which Gamma rays deflected have no effect on ......field Answer: Electric FBQ17: The statement that atoms tend to gain or lose electrons until there are eight electrons in their valence shell refers to.......... rule___________ Answer: Octet FBQ18: Michael faraday’s experiment is in……….. Answer: Electricity FBQ19: Covalent bonding is a form of bonding arises from the .......of electrons among atoms Answer: Sharing FBQ20: Vaander Waal's forces are form of bonding exist even between uncombined atoms and non ........molecules? Answer: Polar FBQ21: Radioactivity can be associated with ......nuclei Answer: Unstable FBQ22: ...........life is a measure of the time taken for half of the radioactive substance to decay Answer: Half FBQ23: A lot of energy is often required to split compounds into the ......elements Answer: Constituent FBQ24: Physical methods can be used to separate a ........with varying components? Answer: Mixture FBQ25: Chemical reactions are explain by combinations and.......... of atoms Answer: Rearrangement FBQ26: Theory is a ......proposal to explain an observed statement of facts Answer: Tested FBQ27: ........postulate was discarded as a result of The knowledge of radioactivity.  Answer: Daltons FBQ28: Faraday, ...........and Millikan conducted experiments that accounted for the evidences about the nature of matter Answer: Thompson FBQ29: Chemical symbols and ....... are used to represent elements and compounds Answer: Formulae FBQ30: Lustre is a general characteristics of ....... Answer: Metals FBQ31: The third particle in the nucleus is.............. Answer: Neutron FBQ32: Element cannot be ...... Answer: Split FBQ33: Substance that can be broken down into elements is called........ Answer: Compound FBQ34: Non metals .........cannot heat Answer: 8Conduct FBQ35: Metal is a solid at .......temperature  Answer: Room MCQ1: What is the nature of the charges on an electron? Answer: negatively MCQ2: What is the magnitude of the charge on a proton and an electron? Answer: the same MCQ3: What is the constituents of the atom? Answer: protons, electrons and neutrons MCQ4: For the atom to be electrically neutral, what should be the magnitude of the charges of the protons and electrons? Answer: number of protons and electrons must be equal  MCQ5: What is the relative atomic mass of an element?  Answer: the mass of one atom of the element compared to (1/12) of the mass of one atom of carbon - 12 isotopes MCQ6: What instrument would you use to determine fairly accurately the relative atomic masses of elements Answer: mass spectrometer MCQ7: What do Chemical symbols and formulae used to represent ? Answer: elements and compounds MCQ8: Which of these laws was discarded as a result of The knowledge of radioactivity? Answer: Daltons postulate MCQ9: Which of these can be associated with unstable nuclei? Answer: Radioactivity MCQ10: Which of these statements best define the phenomenon of half-life?  Answer: a measure of the time taken for half of the radioactive substance to decay MCQ11: What radiations does a radioactive element in its decay emit? Answer: Alpha, beta and gamma rays MCQ12: What type of charges do Alpha rays bear? Answer: positively charged MCQ13: Identify the correct statement about Alpha rays Answer: high ionising power on gases MCQ14: What is the nature of the charge on Gamma rays? Answer: neutrally charged MCQ15: What type of charges do Beta rays carry? Answer: negatively charged MCQ16: Which of these statements hold true about Beta rays? Answer: low ionising power on gases MCQ17: Which of these statements hold true about Gamma rays? Answer: very low ionising power on gases MCQ18: Which of these statements hold true for an element ? Answer: cannot be split MCQ19: What is a pure substance that can be broken down into elements called Answer: Compound MCQ20: How many groups can you subdivide an element into? Answer: 2 MCQ21: What results when two or more elements combine chemically in fixed proportion by mass. Answer: compound MCQ22: Which of these can be associated with unstable nuclei? Answer: Radioactivity MCQ23: How much energy is often required to split compounds into the constituent elements Answer: a lot of MCQ24: What is the numbers of compounds available.   Answer: Limitless MCQ25: How would you seperate a mixture with varying components? Answer: physical methods MCQ26: Which of these methods can be used to separate a mixture Answer: all of the options MCQ27: How would you explain chemical reactions of atoms Answer: combinations and rearrangement MCQ28: What is a tested proposal to explain an observed statement of fact Answer: Theory MCQ29: Which law states that all elements are made up of small, indivisible particles called atoms Answer: Daltons Atomic theory MCQ30: which of these scientists conducted experiments that accounted for the evidences about the nature of matter? Answer: Faraday, Thompson and Millikan MCQ31: What form of bonding exist even between uncombined atoms and non polar molecules? Answer: Vaander Waal's forces MCQ32: Which of these is the nature of Matter? Answer: Electrical MCQ33: The process in which two or more light nuclei combine to form a heavier nucleus with a release of energy is known as Answer: nuclear fussion MCQ34: Which of these is used  for radioactivity? Answer: all of the options MCQ35: What does the statement that atoms tend to gain or lose electrons until there are eight electrons in their valence shell refers to? Answer: Covalent bonding