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The atomic number is the total number of protons in the nucleus of an Atom and for any particular Atom this number is invariable. The mass number is the total weight of both protons and neutrons in the nucleus. Isotopes exist because the number of neutrons contained within the nucleus of 'any given Atom' varies. Hence carbon dating and also isotope dating of many sorts are made possible.
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What do the numbers and letters in the periodic table represent?
either mass or protons the top is the atomic number it shows how many protons the bottom number is the atomic mass also the weight
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 are the 2 numbers represent for each element in the periodic table represent?
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What equals the number of neutrons plus the number of protons in an atom?
The sum of the number of protons and neutrons in an atom is known as the atomic mass. It is equivalent to the mass number of the atom, which represents the total number of protons and neutrons in the nucleus.
What does the number below each symbol represent?
The average Atomic Mass
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 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 the atomical number represent?
The Atomic Mass is the mass (weight) of the element measured in atomic mass units (AMU)
What do the numbers and letters in the periodic table represent?
either mass or protons the top is the atomic number it shows how many protons the bottom number is the atomic mass also the weight
If there is a difference between a substance atomic number and its atomic mass which measure must be the larger number?
The atomic mass number must be higher as that represent the number of protons and neutrons in an element. Whereas only the number of protons are represented in the Atomic Number.
What does Bohrs diagram represent?
it represents where the atoms, protons, Atomic Mass, atomic number, and electrons where they are located on the nucleus.
If there is a difference between a substance's atomic number and its atomic mass and which measure must be the larger number?
The atomic number represents the number of protons in an atom, while the atomic mass represents the sum of protons and neutrons. Generally, the atomic mass is larger than the atomic number for most elements since it includes both protons and neutrons.
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 number above the symbol represent?
The atomic number.
What does atomic mass represent of an element represent?
Atomic Mass represents the mass of atom. We use mass of protons and neutrons.
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.
