Conceptual Physics (12th Edition)
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John Dalton ; In 1800, John Dalton postulated that... more
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The tiny dust particles immersed in water show ... more
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Albert Einstein. ; The eminent physicist Albert ... more
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Both places have nearly the same number of atoms... more
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Most of the atoms that constitute our body are ... more
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Because atoms are much smaller than the wavelength... more
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Because atoms are larger than the wavelength of ... more
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A model helps the humans to understand and predict... more
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At the centre of the atom inside the nucleus of ... more
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The neutron and proton, which constitute a nucleus... more
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The electric charge of a proton and an electron ... more
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A solid material is made up of a large number of ... more
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Hydrogen ; The hydrogen atom contains only one ... more
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Hydrogen. ; The simplest and lightest element in ... more
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The heavier elements formed from the fusion of ... more
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The heavier elements originate from the Supernovas... more
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Oxygen, carbon, hydrogen, nitrogen and calcium... more
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The atomic number is equal to the number of ... more
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Maximum number of shells is seven in the atoms ... more
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Electrical attraction. ; The nucleus of the atom ... more
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As the mass of the elements increases, nuclear ... more
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Different forms of the same elements, by differing... more
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The total number of protons and neutrons in an ... more
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A chemical substance consists of atoms of two or ... more
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Mixtures are physical combinations of substances ... more
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Atoms are the basic building blocks of matter, ... more
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The energy released is the same as the energy ... more
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A matter has a positively charged nucleus while an... more
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When a particle of antimatter meets with a ... more
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The gravitational force within the galaxies is ... more
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Yes. ; Oxygen is required for a candle to burn. ... more
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Dear Grandparents, I am good for the grace of god ... more
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Radon lies in the 6th row (period) of the periodic... more
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The atomic mass of an oxygen atom is , therefore ... more
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One ; A pure sample of an element contains only ... more
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Three. ; A water molecule contains two atoms of ... more
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The molecules of the gases in the heated container... more
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Although the gas molecules have large speed, they ... more
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Water ; Hydrogen, carbon and oxygen are elements ... more
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, , , ; , , , are the pure elements as contains ... more
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Partially because the number of protons is what ... more
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The tiny dust particles immersed in water show ... more
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Seven atoms present in the molecule of sulfuric ... more
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The element is copper with the atomic number 29 ... more
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The resulting nucleus is the nucleus of carbon-14... more
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Lead. ; Mercury has 80 protons. Adding two protons... more
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Radon with mass number 224. ; Radium has 88 ... more
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An atom gains an electron to become the negative ... more
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An atom loses an electron to become the positive ... more
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Adding a proton to germanium, it will become ... more
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Neon, argon, krypton, xenon, radon. ; The elements... more
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Germanium. ; The elements in the same column have ... more
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Protons contribute more to the mass and electrons ... more
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A carbon atom. ; Since a carbon atom is about 12 ... more
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Hydrogen molecules. ; The kinetic energy of an ... more
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Because of the stronger electromagnetic ... more
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Which of the following is true?Compounds are ... more
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An animal senses the molecules released by the ... more
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No, only when molecules escapes from body and it ... more
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The atoms that make up a newborn originally came ... more
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Ball P is lighter than ball G. Hence, equal masses... more
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A carbon atom is lighter than an oxygen atom. ... more
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1 kg of aluminum contains more atoms because an ... more
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Silicon ; Carbon and silicon lies in the same ... more
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The atoms that make up the human body alive today ... more
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It is highly likely that the atoms that a person ... more
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HO ; The early investigators thought that a water ... more
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Only an equal amount of matter annihilates with ... more