what is atomic number and atomic mass?.Write with suitable examples.
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The atomic number uniquely identifies a chemical element. In an uncharged atom, the atomic number is also equal to the number of electrons. The sum of the atomic number Z and the number of neutrons, N, gives the mass number A of an atom.
For example, all hydrogen atoms, and only hydrogenatoms, contain one proton and have anatomic number of 1.
. Atomic mass, also atomic weight, is the total weight of an element. It is found by adding together the number of protons and neutrons in the nucleus of that element.
For example, all hydrogen atoms, and only hydrogenatoms, contain one proton and have anatomic number of 1.
. Atomic mass, also atomic weight, is the total weight of an element. It is found by adding together the number of protons and neutrons in the nucleus of that element.
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The atomic number or proton number of a chemical element is the number of protons found in the nucleus of an atom. It is identical to the charge number of the nucleus. The atomic number uniquely identifies a chemical element. In an uncharged atom, the atomic number is also equal to the number of electrons. this is atomic number.
The atomic mass is the mass of an atom. Its unit is the unified atomic mass units where 1 unified atomic mass unit is defined as ¹⁄₁₂ of the mass of a single carbon-12 atom, at rest , is known as atomic mass.
For example, all hydrogen atoms, and only hydrogen atoms, contain one proton and have an atomic number of 1.
Examples of Atomic Mass. Hydrogen is the lightest naturally occurring element. It consists of one proton and one electron.
The atomic number or proton number of a chemical element is the number of protons found in the nucleus of an atom. It is identical to the charge number of the nucleus. The atomic number uniquely identifies a chemical element. In an uncharged atom, the atomic number is also equal to the number of electrons. this is atomic number.
The atomic mass is the mass of an atom. Its unit is the unified atomic mass units where 1 unified atomic mass unit is defined as ¹⁄₁₂ of the mass of a single carbon-12 atom, at rest , is known as atomic mass.
For example, all hydrogen atoms, and only hydrogen atoms, contain one proton and have an atomic number of 1.
Examples of Atomic Mass. Hydrogen is the lightest naturally occurring element. It consists of one proton and one electron.
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