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11.10 He  2 protons, 2 neutrons

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Questions -- MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

) Which of these atoms has the greatest amount of electrical charge in its nucleus? A)carbon B)helium C)uranium D)iron E) gold 2) Compared to the atoms that make up the body of an elderly person, the atoms that make up the body of a newborn baby are A)newer. B)the same age. C) actually older.

) The volume of matter comes mostly from its A)protons. B) electrons. 4) Assuming all the atoms exhaled by Julius Caesar in his last dying breath are still in the atmosphere, then we probably breathe one of those atoms with each A) day. B) it depends, some people still breathe a few of Caesar's atoms every day, while others wouldn't breathe one for an entire year. C) single breath. D) month. E) ten years.

) Which of these forces determines the chemical properties of an atom? A) gravitational force B) nuclear force C) friction force D) electrical force E) none of these 6) Which of these atoms has the greatest number of electrons? A)carbon B)gold C)uranium D)iron E) helium

) Solid matter is mostly empty space. The reason solids don't fall through one another is because A) atoms are constantly vibrating, even at absolute zero. B) of gravitational forces. C) of electrical forces. D) of nuclear forces. E) none of these. 8) Which of the following is not a compound? A) air B) water C) ammonia D) salt E) All are compounds.

) How many protons should be added to the nuclei of oxygen atoms so the resulting gas will glow red when there is an electric current through it? A) 1 B) 2 C) 3 D) 4 E)...but protons will have to be subtracted, not added. 10) If a gram of antimatter meets a kilogram of matter, the amount of mass to survive is A)1 gram. B)999 grams. C)1 kilogram. D) 1.1 kilogram.

) Compared to the energy it takes to separate oxygen and hydrogen from water, the amount of energy given off when they recombine is A)less. B)more. C) the same. 12) If two protons are removed from an oxygen nucleus, the result is A) carbon. B) helium. C) neon. D) nitrogen. E) none of these.

) What is the molecular mass of a water molecule? A) 10 amu B) 12 amu C) 15 amu D) 18 amu E) none of these 14) The air in this room has A) weight. B) mass. C) energy. D) all of these. E) none of these.

) Which of these atoms has the most mass? A) hydrogen B) uranium C) lead D) iron E) All have the same mass. 16) In a closed bottle are a certain number of hydrogen molecules. In an identical closed bottle at the same temperature and internal pressure are a certain number of nitrogen molecules. The bottle with the greater number of molecules is the one containing A)both the same. B)hydrogen. C) nitrogen.

Answers -- MULTIPLE CHOICE. The one alternative that best completes the statement or answers the question.

11.24 Chapter 11 1) Answer: C 2) Answer: B 3) Answer: B 4) Answer: C 5) Answer: D 6) Answer: C 7) Answer: C 8) Answer: A 9) Answer: B 10) Answer: B 11) Answer: C 12) Answer: A 13) Answer: D 14) Answer: D 15) Answer: B 16) Answer: A