Mass number is the total number of protons and neutrons.
because the nucleus consists of protons and neutrons only, the sum of protons and neutrons is the total number of ALL the nucleons.
note the term "ALL" here..
this is the reason why mass number is denoted as "A".
Number of nucleons = number of protons + neutrons = 16 + 17 = 33 The mass number is thus 33 and the atom is denoted sulfur-33 or 33S.
Number of neutrons = Mass number - atomic number
Mass number is the atomic mass of a particular isotope (apex chem 5.3)
Sulfur or sulphur is the chemical element that has the atomic number 16. It is denoted with the symbol S Its atomocity is 8
Mass number = number of protons + number of neutrons Number of electrons = number of protons = mass number of an isotope - number of neutrons
The atomic number is denoted by the letter "Z" and the mass number is denoted by the letter "A" in isotopic notation of atoms.
The atomic mass is the average mass of an atom of an element, taking into account all its isotopes and their relative abundance. The mass number, on the other hand, is the total number of protons and neutrons in the nucleus of an atom. Atomic mass is given in atomic mass units (amu), while mass number is a whole number.
There are no real reason why it is denoted by z, but that the real number axis is denoted by x, imaginary number is denoted by y, the real part of a complex number is denoted by a, the imaginary part of a complex number is denoted by b, so there is z left.
It is not denoted with a t.
The atomic mass number is the total number of protons and neutrons in an atom's nucleus. It is typically denoted by the symbol A. The atomic mass number helps determine an element's mass and isotopic identity.
Number of nucleons = number of protons + neutrons = 16 + 17 = 33 The mass number is thus 33 and the atom is denoted sulfur-33 or 33S.
An electron has a mass of 9.109 X 10-31 kg, approximately 1⁄1840 the mass of a proton. However, the term mass number doesn't apply to electrons, it applies to atomic nuclei. The mass number of a nuclear isotope is the total number of protons and neutrons, together known as nucleons, of the isotope, and is denoted by (A).
Whole number
The SI unit for mass is the kilogram, denoted as kg.
By the letter R.
The number of protons in a nucleus of an atom constitutes the proton number or atomic number of that element and is denoted as Z. For example, helium has atomic mass of 4 and atomic number of 2, thereby having two protons.
An electron has a mass of 9.109 X 10-31 kg, approximately 1⁄1840 the mass of a proton. However, the term mass number doesn't apply to electrons, it applies to atomic nuclei. The mass number of a nuclear isotope is the total number of protons and neutrons, together known as nucleons, of the isotope, and is denoted by (A).