Make up Group Quiz 1. ÉÍÍÍÍÍÍÍÍÍÍÍÍÍ» º ÉÍÍÍ» X º º º º º º º ÌÍÍͼ º º º º ÌÍÍ» º º º ÈÍͼ º º Y º ÈÍÍÍÍÍÍÍÍÍÍÍÍͼ A) X is the atomic number and equals 82. Y is the atomic mass and equals 207. B) X is the proton value and equals 82. Y is the proton/neutron summation and equals 207. C) X is the determination number indicating when the element was found. It is 82 for Pb. Y is the relation number which indicates the size on the atom as compared to hydrogen. It is 207 for Pb. 2. What is an isotope ? A) An atom that has lost or gained electrons. B) An atom that has lost or gained protons. C) An atom that has lost or gained neutrons. 3. Convert the following from scientific notation into common numbers A) 1.023 x 10^-7 B) 6.02 x 10^12 C) 3 x 10^-4 D) 19,199 4. The density of gold is 19.1 g/ml. The atomic mass of gold is 197. How much does 6.5 ml of gold weigh ? A) 2.93 g B) 124.15 g C) 1.2 x 10^2 g D) 24,458 g 5. For the following: ÉÍÍÍÍÍÍÍÍÍÍÍÍÍ» There are ________ protons. º ÉÍÍÍÍÍÍ» 6 º º º º There are ________ electrons. º º º º º º There are ________ neutrons. º ÈÍÍÍÍÍͼ º º 12 º ÈÍÍÍÍÍÍÍÍÍÍÍÍͼ A) There are 12 protons, 12 neutrons, and 6 electrons. B) There are 6 protons, 6 electrons and 6 neutrons. C) There are 6 protons, 6 electrons, and 12 neutrons. D) Carbon doesn't nave neutrons. It only contains protons and electrons. 6. How many atoms are there in 2 moles of Boron (B) ? A) 2 B) 22 C) 6.02 x 10^23 D) 1.20 x 10^24 7. Calculate the molecular weight of CaSO4. A) 68 g/mole B) 88 g/mole C) 44 g/mole D) 136 g/mole 8. What causes an atom to have a valence ? A) Little rods along the top edge of the nucleus. B) Diametrically opposed electrons in a spiral orbit nearest the nucleus. C) Electrons in the outermost orbital which are available for interaction with other atoms. D) Atoms don't have a valence; ions do. 9. Draw a picture of how a photograph of the electrons in a carbon atom would most likely appear. Remember what I drew and what I stated in class. 11. What is the electronic structure of Oxygen ? _____________ of Calcium ? ____________ of Hydrogen ? ___________ 15. How are electrons like a magnet ? A) They stick to each other B) they have a north and a south pole C) they repel each other D) both b and c E) all the above 16. What is the scientific term used to classify light waves ? A) electromagnetic radiation B) Edisonus visibilis C) frequency modulated amplitudes D) spectrumized energetic photons 17. The properties of a compound are A) the same as the properties of the elements that make up the compound. B) a combination of the properties of the elements which make up the compound. C) quite different from the properties of the elements which make up the compound. D) are determined by the age of the compound. 18. Which of the following is a mixture ? A) sodium hydroxide B) sulfur dioxide C) methane D) Coca Cola 19. Which factor is associated with the prefix micro- ? A) 1000 B) 100 C) 0.000001 D) 0.001 E) 0.01 20. Which of the following elements has the symbol P ? A) potassium B) palladium C) plutonium D) phosphorus E) lead 21. Which of the following is a symbol of a metallic element ? A) C B) Te C) As D) B E) Sb 23. If in a sample of matter, all of the molecules are not identical, then: A) the sample is an ionic compound. B) the sample is an element. C) the sample is a molecular compound D) the sample is a mixture. E) the sample is pure. 24. If a substance is a liquid or gas at room temperature, the substance is definitely not: A) a compound. B) a mixture. C) ionic. D) molecular. 26. What happens at 0 K (absolute Kelvin) ? A) Nothing, everything is frozen in place. B) Something, but since we have not yet been able to lower a system to this temperature, we don't know. C) 0 K is just theory. It is a manmade scale and has nothing to do with reality since 0 K has never been found in nature. D) All functions stop. Electrons halt their motion. Atoms coalesce into a mega-atom (a large frozen clump of atoms). 27. The number following an element in a chemical formula tells us: A) the number of atoms of the element in a molecule of the substance. B) how to divide the mass of the element to calculate the mass of the compound. C) the proportion of neutrons to protons in the atom. D) the position of the element in the compound. 28. One of the most common ways chemistry effects us is through our burning of natural gas. This process which releases heat is known to chemists as: A) fuel consumption B) combustion C) oxidation D) the furnace effect 29. Stainless steel is A) not a mixture. B) an homogeneous mixture. C) a heterogeneous mixture. D) is a completely new compound. 30. Granite is A) not a mixture. B) an homogeneous mixture. C) a heterogeneous mixture. D) is a just a rock. 32. The three types of common radioactive decay particles are: A) protons, neutrons, and electrons B) photons, quarks, and quasis C) helium atoms, high speed electrons, high energy photons D) no particles are produced from radioactive decay 34. The lowest energy radioactive decay particle is the alpha particle. What can one do to protect oneself from these particles ? A) nothing B) wear lead clothing C) stay inside heavy walled buildings D) cover oneself with a thin material such a layer of common clothes. 35. What is the electron configuration for Au ? 36. Describe the entire process by which an atom emits light. 37. A photon's type is determined by three interrelated properties, list them.