what is the relationship between number of atomic?
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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. What is atomic mass?
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Atomic Number. 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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Mass number. The mass number of an atom is its total number of protons and neutrons. Atoms of different elements usually have different mass numbers , but they can be the same. For example, the mass number of argon atoms and calcium atoms can both be 40.
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Each atom, therefore, can be assigned both an atomic number (the number of protons equals the number of electrons) and an atomic weight (approximately equaling the number of protons plus the number of neutrons).
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The atomic number is the amount of protons present in the atom. Because of that, we can say that the atomic number represents the positive charge of the atom. As the positive charge of the atom increases the atomic radius decreases because the positive charge will bring electrons closer to the nucleus.
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The atomic number is the number of protons in an atom of an element. ... By definition, atoms have no overall electrical charge. That means that there must be a balance between the positively charged protons and the negatively charged electrons. Atoms must have equal numbers of protons and electrons.
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The difference in the number of protons and neutrons in atoms account for many of the different properties of elements. ... They are the glue that holds atoms together in chemical bonds. The basic electron number is determined by the number of protons.
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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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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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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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Atomic Number and Mass Number. ... Thus, the atomic number, which is the number of protons in the nucleus of the atom, identifies the element. Because an atom usually has the same number of electrons as protons, the atomic number identifies the usual number of electrons as well.
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Atomic number. 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.
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The number of protons is the atomic number, and the number of protons plus neutrons is the atomic mass. For hydrogen, the atomic mass is 1 because there is one proton and no neutrons. For helium, it is 4: two protons and two neutrons.
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Neutral atoms of each element contain an equal number of protons and electrons. The number of protons determines an element's atomic number and is used to distinguish one element from another.
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Chemical properties. The atomic number indicates the number of protons within the core of an atom. ... When an atom is generally electrically neutral, the atomic number will equal the number of electrons in the atom, which can be found around the core. These electrons mainly determine the chemical behaviour of an atom.
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The number of protons in an atom is called its atomic number (Z). This number is very important because it is unique for atoms of a given element. ... Therefore, the atomic number of an atom also tells you how many electrons the atom has. This, in turn, determines many of the atom's chemical properties.
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The atomic number is the the number of protons an element contains. The mass number is the sum of protons and neutrons in the nucleus of an atom. Atomic weight/ mass and Mass number. The mass number is the sum of both neutrons and protons.