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Atomic Theory Subatomic Particles Atomic Models It's Isotopic, My Dear Watson Energize Me 10 10 10 10 10 20 20 20 20 20 30 30 30 30 30 40 40 40 40 40 50 50 50 50 50 Category 1 questions follow Question This scientist first proposed a scientific atomic theory. Answer Who is John Dalton? Question This was one of the postulates of Dalton's Atomic Theory. Answer What is: • All elements are composed of atoms • Same element=same atoms, different element=different atoms • Compounds contain two or more atoms • Compounds always combine in the same, fixed proportions Question J.J. Thomson brought these subatomic particles into the atomic theory. Answer What are electrons? Question This scientist revised the theory to include a dense subatomic region that contains neutrons and protons. Answer Who is Ernest Rutherford? Question Category 1 question for 50 points Answer Category 1 answer for 50 points Category 2 questions follow Question This subatomic particle always has a cheery demeanor (positive). Answer What is a proton? Question This subatomic particle is quite pessimisstic (negative). Answer What is an electron? Question These subatomic particles exist inside the nucleus. Answer What are protons and neutrons? Question This subatomic particle contains no overall charge. Answer What is a neutron? Question Category 2 question for 50 points Answer Category 2 answer for 50 points Category 3 questions follow Question J.J. Thomson's model is referred to as this. Answer What is the "plum pudding" model? Question This scientist devised a model in which electrons move around a nucleus like planets around the sun. Answer Who is Niels Bohr? Question The "Bohr Model" has one this fault. Answer What is that electrons do not move in fixed paths around a nucleus? Question This is the currently accepted model of the atom. Answer What is the Electron Cloud model Question Category 3 question for 50 points Answer Category 3 answer for 50 points Category 4 questions follow Question Atoms of the same element with different numbers of neutrons are said to be this. Answer What are isotopes? Question The number of neutrons and protons direclty affect this. Answer The atomic mass number. Question A Carbon-13 atom has 6 protons and this many neutrons. Answer What is seven? Question A Uranium-232 atom has 92 protons and this many neutrons. Answer What is 140? Question Category 4 question for 50 points Answer Category 4 answer for 50 points Category 5 questions follow Question Electrons in an atom exist in these, which are different, but distinct. Answer What are orbitals or energy levels? Question An orbital can hold this many electrons. Answer What is 2? Question An electron configuration at it's lowest possible energy level is said to be at this. Answer What is its ground state? Question When an electron moves from one energy level to a higher energy level the atom must do this to energy. Answer What is absorb? Question Category 5 question for 50 points Answer Category 5 answer for 50 points