is the atomic number the same as the number of protons?
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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. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.
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Atoms of different substances have different numbers of protons in their nucleus. The number of protons in the nucleus is called the atomic number and the total number of protons and neutrons is called the mass number. Atoms of the same element with different numbers of neutrons are called isotopes.
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Since the isotopes of any given element all contain the same number of protons, they have the same atomic number. However, since the isotopes of a given element contain different numbers of neutrons,different isotopes have different mass numbers. ... The Atomic number is the number of protons in an atom.
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The number of protons in an atom is called its atomic number. This number is very important because it is unique for atoms of a given element. All atoms of an element have the same number of protons, and every element has a different number of protons in its atoms.
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The atomic number (Z) of an element is equal to the number of protons in its nucleus. The mass number (A) of an element is equal to the sum of the protons and the neutrons in its nucleus. Isotopes are atoms of the same element that have a different mass number (A) but the same atomic number (Z).
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Number of protons in the nucleus of an atom. Atomic number also specifies a number of electrons, which is equal to a number of protons. Atomic numbers are equivalent to element numbers in periodic table. An atom or a molecule that lost or gained one or more electrons, and thus has an electric charge.
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We are shown that the atomic number is the number of protons in an atom. We see that the mass number minus the atomic number is the number of neutrons. We complete the atomic structure by explaining that atoms have the same number of protons and electrons.
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The atomic number (number at the top) is the amount of protons and the amount of electrons. So if an element has an atomic number of 5, you know that it has 5 protons and 5 electrons. The atomic mass (number at the bottom) is the amount of protons and neutrons added together.
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['number of protons = atomic number.', 'number of electrons = atomic number.', 'number of neutrons = mass number - atomic number.']
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Atomic number. The number of protons in an atom of an element is its atomic number . ... all atoms of a given element have the same number of protons. atoms of different elements have different numbers of protons.
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The number of protons in an atom of an element is its atomic number . Remember that: all atoms of a given element have the same number of protons. atoms of different elements have different numbers of protons.
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The atoms of different elements all have different numbers of protons. Meanwhile, the mass number of an atom consists of the total number of protons and neutrons it contains. An atom's mass number can never be smaller than its atomic number, and while it can be the same it is normally larger.
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Atomic number of an element shows the number of protons in the nucleus of that atom.
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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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Atomic number is the fundamental properties of an atom. Every atom is identified by its unique atomic number. Atomic number is denoted by 'z'. Atomic number is equal to the number of protons present in an atom.
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Atomic number and protons After the discovery of protons , scientists realised that the atomic number of an element is the same as the number of protons in its nucleus . In the modern periodic table, the elements are arranged according to their atomic number - not their relative atomic mass .
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The atomic number (also known as the proton number) is the number of protons found in the nucleus of an atom. It is traditionally represented by the symbol Z. The atomic number uniquely identifies a chemical element. In an atom of neutral charge, atomic number is equal to the number of electrons.