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The mass number represents the weight of the protons and neutrons in Atomic Mass units (AMUs). One AMU is equal to one proton or neutron.
The average mass of all isotopes of the element - apex.
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Why does not an atom of an element represent the actual mass of its atom?
An atom of an element does not represent the actual mass of its atom because the atomic mass listed on the periodic table is an average mass calculated based on the relative abundance of different isotopes of the element. Isotopes are atoms of the same element with differing numbers of neutrons, so the actual mass of an atom of a specific isotope may vary slightly from the average atomic mass.
Which element does X represent in the following expression 32X15?
X represents the element of addition in the expression.
What does the number 40 in argon-40 represent?
The number 40 in argon-40 represents the total number of protons and neutrons in the nucleus of an argon atom. It is the mass number of argon-40, which is the sum of the number of protons (18) and neutrons (22) in the nucleus.
What is the mass number of 15.9994?
The mass number of an element is the sum of the number of protons and neutrons in the nucleus of an atom. For an atom with a mass number of 15.9994, it indicates the average atomic mass of an oxygen atom.
The mass number of an element is the number of?
Mass number is the atomic mass of a particular isotope (apex chem 5.3)
What does the number represent in platinum-195?
It represents the atomic number and atomic mass. Mass number is the superscript Atomic number is the subscript
What does the Mass number in chemistry represent?
The mass number in chemistry represents the total number of protons and neutrons in an atom's nucleus. It is used to identify isotopes of an element, where different isotopes have the same number of protons but a different number of neutrons.
What symbol do scientists use to represent atomic mass unit?
Scientists use the symbol "u" to represent atomic mass unit.
What does the decimal number in an element key represent?
atomic mass
What does themass number represent?
The mass number represents the total number of protons plus neutrons.
What do the numbers and letters in the periodic table represent?
The numbers on the periodic table represent the atomic number, which is the number of protons in an atom's nucleus. The letters represent the chemical symbol of each element.
What does the number represent in the isotope platinum 914?
The number next to any isotope represents the mass number
What does the number after the element represent eg carbon-14?
It represents the mass number of that particular isotope.
What is the symbol used to represent a nucleus?
The symbol used to represent a nucleus is "Au", which is a combination of the atomic symbol and mass number.
What does the mass of an element represent?
the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.
What does the atomic mass of the element represent?
the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.
What does the 254 in fermium 254 represent?
254 is the mass number of the isotope Fm-254.
