A Brief History of Time
Random House Publishing Group, 1998 M09 1 - 240 páginas
#1 NEW YORK TIMES BESTSELLER
Resultados 1-3 de 16
... protons and neutrons were " elementary " particles , but experiments in which pro- tons were collided with other protons or electrons at high speeds indicated that they were in fact made up of smaller particles . These particles were ...
... protons . ( If , for example , one observed a number of protons equal to 1 followed by thirty - one zeros for a ... neutrons , which in turn are made up of quarks . There are no antiprotons or antineutrons , made up from antiquarks ...
... proton and one neutron . The deuterium nuclei would then have combined with more protons and neutrons to make helium nuclei , which contain two protons and two neutrons , and also small amounts of a couple of heavier elements , lithium ...
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