The Structure Of An Atomic
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14 Terms
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What is the radius of an atom?
1 x 10^-10 metres
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What is the mass of a proton?
1
3
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What is the charge of a proton?
+1
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What is the mass of a neutron?
1
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What is the charge of a neutron ?
0
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What is the mass of an electron?
0.0005
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What is the charge of an electron?
-1
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What is the charge of the nucleus?
positive
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What does the nucleus contain?
protons and neutrons
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Where is most of the atom's mass concentrated?
in the nucleus
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What surrounds the nucleus?
negatively charged electrons
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How can the electronic arrangement change?
with the absorption of electromagnetic radiation or by the emission of electromagnetic radiation
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What happens when electrons absorb electromagnetic radiation?
they move further from the nucleus to a higher energy level
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What happens when electrons emit electromagnetic radiation?
they move closer to the nucleus to a lower energy level
Note 
Flashcards (47)