The nucleus of an atom consists of protons and neutrons (no electrons). A nucleu

Question

The nucleus of an atom consists of protons and neutrons (no electrons). A nucleus of a carbon-12 isotope contains six protons and six neutrons, while a nitrogen-14 nucleus comprises seven protons and seven neutrons. You perform a nuclear physics experiment in which you bombard nitrogen-14 nuclei with very high speed carbon-12 nuclei emerging from a particle accelerator. As a result of each such collision, the two nuclei disintegrate completely and a mix of different particles are emitted, including electrons, protons, antiprotons (with electric charge - e each), positrons (with charge +e each), and various neutral particles (including neutrons and neutrinos). For a particular collision you detect the emitted products and find 18 protons, 5 antiprotons, 9 positrons, and 26 neutral particles. How many electrons are also emitted? Number electrons

Explanation / Answer

Charge can't be created, totol net charge remains same

In 13 protons , 13 neutrons , 13 electrons

total positive charge 13

Negative charge13

Net charges 0

Out 18 protons, 5 anti protons, 9 positrons, 26 neutral particles and x electrons

Positive charge 18+9=27

Negative charge=5+x

For net charge to 0, 5+x=27

There for x=22

No of. Electrons is 22

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