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)
Mass number = number of protons + number of neutrons Number of electrons = number of protons = mass number of an isotope - number of neutrons
The mass number of deuterium is 2
Atomic mass is the number of protons present in the nucleus or number of electrons revolving around the nucleus in an atom .It is denoted by Z. Mass number is the sum of number of protons and neutrons present in a nucleus in an atom .It is denoted by A.
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.
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.
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).
By the letter R.
Momentum, denoted by the letter p, is equal to the product of a system's mass and velocity.
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.
the International Standard (denoted "SI" from the French Standard Internationale) unit of measure for Mass is the kilogram (kg)