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Electronegativity A. increases across a period and increases down a group. B. decreases across a period and increases down a group. C. increases across a period and decreases down a group. D. decreases across a period and decreases down a group. User: The atomic radius refers to the distance from the nucleus of an atom to A. its proton cloud. B. its electron cloud. C. its neutron cluster. D. the nucleus of another atom.
Weegy: The nucleus contains: protons and neutrons. i hope this is helpful. :) User: The atomic radius refers to the distance from the nucleus of an atom to Weegy: The atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the nucleus to the boundary of the surrounding cloud of electrons. [ Since the boundary is not a well-defined physical entity, there are various non-equivalent definitions of atomic radius. ] (More)
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Asked 6/21/2012 10:16:14 AM
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The atomic radius refers to the distance from the nucleus of an atom to A. its proton cloud. B. its electron cloud. C. its neutron cluster. D. the nucleus of another atom.
Weegy: B. its electron cloud. User: thank you Weegy: You're welcome! (More)
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Asked 6/21/2012 10:18:23 AM
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:)
Weegy: Hi, do you have questions? [smile] (More)
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Asked 6/21/2012 10:20:44 AM
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When solving an equation using Gay-Lussac's law, which of the following steps do not apply? A. List your knowns and unknowns. B. Convert temperature to kelvin. C. Plug the unknowns into the ideal gas law formula. D. Solve for the unknown
Weegy: C. Plug the unknowns into the ideal gas law formula. User: We have a sample of water vapor which cools from 150 °C to 125 °C. What happens to the motion of the molecules during this time of cooling? A. The motion of the molecules stops. B. The motion of the molecules increases. C. The motion of the molecules decreases. D. The motion of the molecules remains the same. Weegy: C. The motion of the molecules decreases User: In a closed container, when the temperature of a gas doubles, the pressure of the gas is A. reduced by half. B. doubled. C. increased by half. D. left unchanged Weegy: If temperature is constant then pressure becomes doubled. User: Temperature in °C can be converted to K by A. multiplying by 273. B. dividing by 273. C. adding 273. D. subtracting 273. Weegy: C. adding 273. User: For Gay-Lussac's law, temperature is measured in _____. A. kPa B. K C. °C D. °F Weegy: B. Kelvin (More)
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Asked 6/22/2012 10:48:36 AM
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To increase a gas' average kinetic energy, you must _____ the gas' absolute temperature. A. increase B. decrease C. maintain
Weegy: To increase a gas' average kinetic energy, you must: A) INCREASE the gas' absolute temperature. User: The pressure in an automobile tire is 198 kPa at 300 K. At the end of a trip on a hot, sunny day, the pressure has risen to 225 kPa. What is the temperature of the air in the tire? Round to the nearest whole number. Don't forget the units. Weegy: we are given the final pressure instead of the temperature. [ With the same equation we go through the same first step but on the second step we divide by the first number instead of multiplying and we get 225 kPa/660 and the final temperature is 336 K ] (More)
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Asked 6/22/2012 10:58:14 AM
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