The extra neutrons are needed to keep the attractive strong nuclear force within the nucleus greater than the repulsive electromagnetic force of the protons in the nucleus. With heavy enough nuclei eventually this fails.
A nuclide is identified by the number of protons in its nucleus, known as the atomic number, and the total number of protons and neutrons, known as the mass number. These two properties determine the unique identity of a specific nuclide.
The nuclide notation for an atom with 13 protons and 5 neutrons is (^{18}_{13}Al), where the superscript is the sum of protons and neutrons (18) and the subscript is the atomic number (13) for the element aluminum (Al).
For lead, the number of protons (Z) is 82, since the atomic number of lead is 82. If the nuclide contains 1.5 times as many neutrons as protons, then the number of neutrons (N) would be 1.5 times 82, equaling 123.
A correct representation for a nuclide of radon in atomic symbol notation would be ^22286 Rn. This indicates that the nuclide has 222 nucleons (sum of protons and neutrons) and an atomic number of 86 (number of protons).
The mass number of a nuclide is found by adding together the number of protons and neutrons in the nucleus of the atom. It is represented by the symbol A in the nuclide symbol.
A nuclide is identified by the number of protons in its nucleus, known as the atomic number, and the total number of protons and neutrons, known as the mass number. These two properties determine the unique identity of a specific nuclide.
Silicon has 14 protons and 14 neutrons. -I hope this helped-
This is a stable isotope of sulfur: 1616S.
The nuclide notation for an atom with 13 protons and 5 neutrons is (^{18}_{13}Al), where the superscript is the sum of protons and neutrons (18) and the subscript is the atomic number (13) for the element aluminum (Al).
A nuclide symbol represents a specific isotope of an element and consists of the element's chemical symbol, atomic number, and mass number. The chemical symbol is a one- or two-letter abbreviation for an element, the atomic number is the number of protons in the nucleus, and the mass number is the sum of protons and neutrons in the nucleus.
The superscript is the atomic mass number, which is the sum of protons and neutrons. The subscript is the atomic number, which is the number of protons. For a hafnium nuclide with 107 neutrons, the superscript would be 180 (107 neutrons + 73 protons) and the subscript would be 73.
For lead, the number of protons (Z) is 82, since the atomic number of lead is 82. If the nuclide contains 1.5 times as many neutrons as protons, then the number of neutrons (N) would be 1.5 times 82, equaling 123.
A correct representation for a nuclide of radon in atomic symbol notation would be ^22286 Rn. This indicates that the nuclide has 222 nucleons (sum of protons and neutrons) and an atomic number of 86 (number of protons).
The atom with 55 protons and 78 neutrons is silver-133. Therefore, the correct nuclide symbol would be (_{47}^{133}Ag).
The mass number of a nuclide is found by adding together the number of protons and neutrons in the nucleus of the atom. It is represented by the symbol A in the nuclide symbol.
The nuclide symbol for the nucleus that contains 16 protons and 16 neutrons is oxygen-32, represented as ^{32}_{16}O.
The number of neutrons in a nuclide can be calculated using the formula: [ \text{Number of Neutrons} = \text{Mass Number} - \text{Atomic Number} ] Here, the mass number is the total number of protons and neutrons in the nucleus, while the atomic number represents the number of protons. Thus, subtracting the atomic number from the mass number gives the number of neutrons.