Matter and Antimatter
As we've learned previously, the atom is the smallest part of an element (such as oxygen) that has the characteristics of the element. Atoms are made up of very small negatively charged electrons surrounding, surrounding the much larger nucleus. The nucleus is composed of positively charged protons and neutral neutrons. The positively charged protons exert a repelling electrical force upon each other, but the strong nuclear force holds the protons and neutrons together in the nucleus.
This completely summarized our understanding of atomic structure until the 1930s, when scientists began to discover evidence that there was more to the picture, and that protons and nucleons were made up of even smaller particles. This launched the particle physics movement, which, to this day, continues to challenge our understanding of the entire universe by exploring the structure of the atom.
In addition to matter we're familiar with, researchers have discovered the existence of antimatter. Antimatter is matter made up of particles with the same mass as regular matter particles, but opposite charges and other characteristics. An antiproton is a particle with the same mass as a proton, but a negative (opposite) charge. A positron has the same mass as an electron, but a positive charge. An antineutron has the same mass as a neutron, but has other characteristics opposite that of the neutron.
When a matter particle and its corresponding antimatter particle meet, the particles may combine to annihilate each other, resulting in the complete conversion of both particles into energy consistent with the mass-energy equivalence equation: E=mc2.
Question: A proton and an antiproton collide and completely annihilate each other. How much energy is released? (m proton=1.67*10-27 kg)
Matter and AntimatterAs we've learned previously, the atom is the smallest part of an element (such as oxygen) that has the characteristics of the element. Atoms are made up of very small negatively charged electrons surrounding, surrounding the much larger nucleus. The nucleus is composed of positively charged protons and neutral neutrons. The positively charged protons exert a repelling electrical force upon each other, but the strong nuclear force holds the protons and neutrons together in the nucleus.This completely summarized our understanding of atomic structure until the 1930s, when scientists began to discover evidence that there was more to the picture, and that protons and nucleons were made up of even smaller particles. This launched the particle physics movement, which, to this day, continues to challenge our understanding of the entire universe by exploring the structure of the atom.In addition to matter we're familiar with, researchers have discovered the existence of antimatter. Antimatter is matter made up of particles with the same mass as regular matter particles, but opposite charges and other characteristics. An antiproton is a particle with the same mass as a proton, but a negative (opposite) charge. A positron has the same mass as an electron, but a positive charge. An antineutron has the same mass as a neutron, but has other characteristics opposite that of the neutron.เมื่ออนุภาคสสารและอนุภาคของปฏิสสารที่สอดคล้องตรงกับ อนุภาคที่อาจรวมถึงการทำลายกัน ในการแปลงเสร็จสมบูรณ์ของอนุภาคทั้งสองเป็นสอดคล้องกับสมการมวล–พลังงานเทียบเท่าพลังงาน: E = mc2 ได้คำถาม: เป็นโปรตอนและ antiproton การชน และทำลายกันอย่างสมบูรณ์ ปล่อยพลังงานเท่าไร (m โปรตอน = 1.67 * 10-27 กิโลกรัม)
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