in this passage, scientist richard feynman explains how uranium can be used to create an atomic bomb. select…

in this passage, scientist richard feynman explains how uranium can be used to create an atomic bomb. select the best evidence to support the statement that u - 235 is rare. feynman explained the basics: how uranium atoms split when hit with neutrons, how they give off energy, how a chain reaction could lead to an explosion. it wouldnt work with just any uranium, though. the nucleus of a uranium atom usually had a total of 238 protons and neutrons. its called u - 238. when hit with a speeding neutron, u - 238 does not fission. its useless to bomb makers. but a small percentage of uranium atoms—about 1 out of every 130—have a total of 235 protons and neutrons. this is u - 235. when u - 235 is hit by neutrons, it does split and release energy. from steve sheinkin, bomb: the race to build - and steal - the worlds most dangerous weapon. copyright 2012 by steve sheinkin

in this passage, scientist richard feynman explains how uranium can be used to create an atomic bomb. select the best evidence to support the statement that u - 235 is rare. feynman explained the basics: how uranium atoms split when hit with neutrons, how they give off energy, how a chain reaction could lead to an explosion. it wouldnt work with just any uranium, though. the nucleus of a uranium atom usually had a total of 238 protons and neutrons. its called u - 238. when hit with a speeding neutron, u - 238 does not fission. its useless to bomb makers. but a small percentage of uranium atoms—about 1 out of every 130—have a total of 235 protons and neutrons. this is u - 235. when u - 235 is hit by neutrons, it does split and release energy. from steve sheinkin, bomb: the race to build - and steal - the worlds most dangerous weapon. copyright 2012 by steve sheinkin

Answer

Brief Explanations:

The text states that about 1 out of every 130 uranium atoms have a total of 235 protons and neutrons (U - 235), indicating its low prevalence.

Answer:

But a small percentage of uranium atoms—about 1 out of every 130—have a total of 235 protons and neutrons. This is U - 235.