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8 gru 2018 · Electrons are subatomic particles. Atoms are made of protons, neutrons, and electrons. Of these three particles, the electron has the smallest mass. Here is the definition of the electron, along with its word origin, history, and interesting facts. Electron Definition. An electron is a stable subatomic particle with a negative electrical charge ...
Electrons circle around the nucleus and have a negative electrical charge. Their total negative electrical charge is equal to the protons’ positive electrical charge. Atoms always have the same number of electrons, protons, and neutrons.
The basic particles that make up an atom are electrons, protons, and neutrons. Atoms fit together with other atoms to make up matter. It takes a lot of atoms to make up anything.
All atoms have the same basic parts. These are a nucleus and at least one particle called an electron. The nucleus contains protons and neutrons. Diagrams of two kinds of atoms show that each kind of atom has a different number of electrons. The tiny particles called atoms are the basic building blocks of all matter.
Electrons are the lightest charged particles in nature: each has a mass of only about 9.1 × 10 −28 gram. Protons and neutrons are about 1,836 times more massive. In fact, the nucleus accounts for 99.9 percent of the atom’s mass, though it takes up a very small fraction of the atom’s size.
Atoms are in fact made up of three smaller particles called protons, electrons and neutrons. The protons and neutrons are contained in the nucleus, the tiny centre of an atom, with smaller...
3 lis 2024 · An electron is a very small piece of matter and energy. Its symbol is e−. The electron is a subatomic particle. It is believed to be an elementary particle because it cannot be broken down into anything smaller. It is negatively charged, and may move almost at the speed of light.
