how are the atomic number and the number of protons related?
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The atomic number equals the charge on the nucleus. It therefore also equals the number of protons in the nucleus and also equals numerically the number of electrons in the neutral atom. The atomic number has the symbol Z.
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Go to the Periodic Table of Elements and click on your element. If it makes things easier, you can select your element from an alphabetical listing. The atomic number is the number of protons in an atom of an element.
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Atomic number is equal to the number of protons and number of electrons in the nucleus . Mass no is equal to the sum of the number of protons and neutrons in the nucleus of an atom.
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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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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 combined number of protons and neutrons is called Mass number. It is also called Nucleon number .
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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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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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His results led to the definition of atomic number as the number of protons contained in the nucleus of each atom. He then realized that the elements of the periodic table should be arranged in order of increasing atomic number rather than increasing atomic mass.
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- Remember that the mass number (a.k.a atomic mass)- is the number of PROTONS and NEUTRONS in the nucleus of the atoms of that element. - The periodic table gives us the atomic number of each element. For example, Hydrogen has the atomic number of 1 and Oxygen has the atomic number of 8.
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The atomic number stands for the number of protons in an atom of the element. The number of protons determines the identity of the element, So the atomic number identifies the element.
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The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of every atom of that element. The atomic number uniquely identifies a chemical element.
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Atomic Number. Indicates the number of protons in the nucleus. The atomic number defines an atom. All atoms of an element have the same atomic number. No two elements have the same atomic number.
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Two atoms of the same element can have different numbers of protons. ... Two different elements can have the same atomic number. Mass number. The sum of the protons and neutrons in the nucleus of that atom.
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Fundamental Subatomic Particles 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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The major difference between atomic number and mass number is that the atomic number states the number of protons present in an atom whereas, the mass number indicates the total of the number of protons and the number neutrons present in an atom.
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Atomic number, the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus. Accordingly, the number of protons, which is always equal to the number of electrons in the neutral atom, is also the atomic number.