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The nucleus contains a certain number (Z) of protons and a generally different
number (N) of neutrons; the diameter of a nucleus depends upon the number of
protons and neutrons ... Each proton has one unit of positive electric charge (-f-e).
The reactions are as follows: first, a carbon nucleus, 12C, captures a hydrogen
nucleus or proton, !H, to form a nucleus of nitrogen, 13N; thus, 12C -f !H — > 13N
-f- gamma ray. A gamma ray is emitted in the process. The light 13N nucleus is ...
The most important fusion process in the Sun is the so-called proton- proton
reaction, or hydrogen-burning. The fusion of two hydrogen atoms, the nuclei of
which are called protons, produces a deuterium atom and releases a positron
and a ...
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review