Which description best describes the group and period trends in atomic radii in the periodic table?
A. generally increases going across periods and generally increases going down groups
B. generally increases going across periods and generally decreases going down groups
C. generally decreases going across the periods and generally increases going down groups
D. generally decreases going across periods and generally decreases going down groups
Answers: 2
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One of the hopes for solving the world's energy problem is to make use of the fusion reaction 21h +31h --> 42he + 10n + energy how much energy is released when 1 mol of deuterium is fused with 1 mol of tritium according to the above reaction? the masses of the atoms and the neutrons are as follows: 21h = 2.0140 amu 31h = 3.01605 amu 42he = 4.002603 amu 10n = 1.008665 amu. the speed of light is 2.9979 x 108 m/s.
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Answers: 1
Which description best describes the group and period trends in atomic radii in the periodic table?...
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