which of these statements is true of atomic nuclei?
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Which statement about the atomic nucleus is correct? The nucleus is made of protons and neutrons and has a positive charge. Atoms have an equal number of protons, which each have a charge of +1, and electrons, which each have a charge of -1.
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The nucleus is a collection of particles called protons, which are positively charged, and neutrons, which are electrically neutral. Protons and neutrons are in turn made up of particles called quarks. The chemical element of an atom is determined by the number of protons, or the atomic number, Z, of the nucleus.
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electrons are not inside the nucleus. The nucleus of an atom is composed of protons and neutrons, and the electrons orbit the outside of the atom in valence shells.
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The number of protons, neutrons, and electrons in an atom can be determined from a set of simple rules. The number of protons in the nucleus of the atom is equal to the atomic number (Z). ... The number of neutrons is equal to the difference between the mass number of the atom (M) and the atomic number (Z).
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In chemistry and physics, a nucleon is either a proton or a neutron, considered in its role as a component of an atomic nucleus. The number of nucleons in a nucleus defines an isotope's mass number (nucleon number). Until the 1960s, nucleons were thought to be elementary particles, not made up of smaller parts.
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AN ATOM IS MADE UP OF A NUCLEUS THAT IS MADE UP OF PROTONS AND NEUTRONS, AND AROUND THE ATOM THERE ARE ELECTRONS.
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The nucleus, that dense central core of the atom, contains both protons and neutrons. Electrons are outside the nucleus in energy levels. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge. A neutral atom contains equal numbers of protons and electrons.
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The atomic number is defined by the number of protons in an element. An element is defined by the number of protons the nucleus contains and doesn't have anything to do with how many isotopes the element has.
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Atoms are made up of protons and neutrons located within the nucleus, with electrons in orbitals surrounding the nucleus. Masses for the three subatomic particles can be expressed in amu (atomic mass units) or grams.
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Isotopes are atoms of an element with the normal number of protons and electrons , but different numbers of neutrons. Isotopes have the same atomic number, but different mass numbers. Isotopes can either be radioactive or non-radioactive.
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Explanation: The nucleus of an atom contains protons and neutrons. The protons are positively charged and the neutrons have no charge.
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Atoms contain protons, neutrons and electrons. The electrons are arranged in shells around the nucleus.
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Structure of the Atom. The number of protons, neutrons, and electrons in an atom can be determined from a set of simple rules. The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons.
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The model suggests that atoms are made of smaller subatomic particles. In the middle of every atom is the nucleus. The nucleus contains two types of subatomic particles, protons and neutrons. The protons have a positive electrical charge and the neutrons have no electrical charge.
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Atoms found in nature are either stable or unstable. An atom is stable if the forces among the particles that makeup the nucleus are balanced. An atom is unstable (radioactive) if these forces are unbalanced; if the nucleus has an excess of internal energy.
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The nucleus of an atom normally contains two types of particle: the proton and the neutron. From what you have learned before, it may seem that protons and neutrons are fundamental particles. This would be a nice simple picture of matter: three particles that make up the Universe - protons, neutrons and electrons.
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Atomic number of an element shows the number of protons in the nucleus of that atom.