chemistry and the enviromnment
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is alphay decay? | Radioactive decay that results in an alpha particle(a helium nucleus) being emitted from the nucleus of a radioactive element.
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| What is alpha particles? | A partically charged particle emitted from the nucleus of an atom during radiactive decay, also called a helium nucleus.
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| What is beta decay? | Radioactive decay that results in a beta particle (an electron) being emittedfrom the nucleus of radioactive element.
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| What is beta particles? | A negatively charged particle (an electron)emitted from the nucleues of an atom during radiactive decay.
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| What is carbon dating? | A technique to find out how old something is.
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| What is emissions? | the airbone gases and particles expelled through an operating automobile's tailpipe.
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| What is fission? | xA nuclear reaction that involves the splitting of the nucleus of an atom.
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| What is fossil fuels? | Hydrocarbon substances inculding oil, coal, and natural gas that are extracted from the Earth.
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| What is fusion? | A nuclear reaction that involves fusing nuclei from two atoms to make a different atom.
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| What is global warning? | An increase in the Earth's temperature due to mainly to increased carbon dioxide and other heat-absorbing gases in the atmosphere.
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| What is half-life? | The length of time it takes for half an amount of radioactive subtances to undergo radioacative decay.
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| What is isotope? | Forms the same element that have different numbers of neutrons and different mass numbers.
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| What is nuclear reactions? | A reaction that involves splitting the nucleus of an atom or fusing two nculei.
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| What is nucleons? | The protons and neutrons inthe nucleus of an atom.
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| What is photosynthesis? | A chemical reaction performed by plantss in which energy from the sun is converted to chemical energy.
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| What is radioactive? | A term to describe an atomic state when the nucleus is emitting radiation in the form of particles and energy until it becomes more stable.
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| What is radioactive isotope? | an unstable isotope of an element that spontaneously undergoes radiactive decay.
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| What is stable? | A non-radioactive nucleus.
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| What is unstable? | A radioactive nucleus.
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