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Atomic Structure. Positively charged nucleus (which contains neutrons and protons) surrounded by negatively charged electrons. - Electrons lie at different distances from the nucleus (different energy levels). The electron arrangements may change with the interaction with EM radiation.
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An atom consists of a positively charged nucleus containing protons and neutrons, surrounded by negatively charged electrons. Each of these sub-atomic particles has a relative mass and charge: Subatomic Particle Proton Nucleus Electron. Relative Mass. 0 (0.0005) Relative Charge +1. 0 -1.
Atom. A positively charged nucleus. Made of positive protons. And neutral neutrons. Surrounded by negatively charged electrons. The electrons orbit the nucleus at different fixed distances from the nucleus. The nuclear radius is a lot smaller than the radius of the atom.
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nucleus: small, dense positively charged center of an atom. protons and neutrons are found in the nucleus. protons: positively charged particles in the nucleus. neutrons: neutral particles in the nucleus. electrons: negatively charged particles orbiting the nucleus. The atomic mass of a neutron and a proton is 1 amu.
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What is an atom? An atom: is the simplest particle of an element that is neutral. And secondly, what is an atom made of? Atoms are made of three different types of particles. Protons. Neutrons. Electrons. Protons and neutrons are located in the nucleus of the atom.
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Alpha Scattering Findings and Conclusions Table. Rutherford proposed the nuclear model of the atom. In the nuclear model: Nearly all of the mass of the atom is concentrated in the centre of the atom (in the nucleus) The nucleus is positively charged.
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Atoms are composed of three primary subatomic particles: 1. Protons positively charged particles found in the nucleus mass is 1 AMU 2. Neutrons no charge (neutral) found in the nucleus mass is 1 AMU “glue” that holds the protons together in the nucleus. 3. Electrons Negatively charged
