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Atoms of elements in the same group have the same number of [blank] this is why they have similar chemical properties.
a. protons
b. neutrons
c. valence electrons
Answers: 1
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Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).
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Atoms of elements in the same group have the same number of [blank] this is why they have similar ch...
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