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Which of the following is not a particle? Up, down, left and right

发布时间:2019-03-04 07:07:03来源:未知点击:

Answer: left and right. Up and down belong to the family of quarks, the building blocks of matter. Protons are made of two ups and a down. Neutrons are two downs and an up. Left and right are made up. Read more: “11 particles for 11 physics puzzles“ More on these topics: