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What are the main contributors to the weight of an atomic element?
Wiki User
∙ 11y ago
The protons and neutrons are the main contributors to the weight of an atomic element.
Wiki User
∙ 11y ago
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Which is a factor in determining the average atomic mass of an element?
The two main factors in determining the average atomic mass of an element are:the isotopic composition of the element (the fraction of each isotope)the atomic mass of each isotope
What four pieces of information about each element is found on the periodic table?
Well the four main types really go down to the Atomic Number, Atomic Mass, The Chemical/Atomic symbol, and the elements name of course. But different tables vary.
Why is atomic mass of an element an average mass?
The Atomic Mass of an element is the numerical average of all the masses of the naturally occurring isotopes of that element proportionately. Man made elements do not count in supposedly. IE: If we have an element with atomic weight 100 and we have an isotope of that element with atomic weight 102 and if they occurred equally in nature then the Atomic Mass would be 101.
Which main part of an atom determines the atomic number of an element?
The number of protons, which are found in the nucleus of an atom.
How are the atomic mass unit and the atomic weight related?
The mass number is the total amount of protons and neutrons in an atom (the number of protons is the same as the number of electrons) The atomic number is the number of protons (or electrons) in an atom. To find out the number of neutrons in an atom, you need to take the atomic number from the mass number An atom is normally written like this: Mass number Ca Atomic number The Mass number can be written as (A) and the atomic number can be writtens as (Z)
Which is a factor in determining the average atomic mass of an element?
The two main factors in determining the average atomic mass of an element are:the isotopic composition of the element (the fraction of each isotope)the atomic mass of each isotope
What four pieces of information about each element is found on the periodic table?
Well the four main types really go down to the Atomic Number, Atomic Mass, The Chemical/Atomic symbol, and the elements name of course. But different tables vary.
Who are the early contributors to the development of alphabets?
The Phoenicians were the main early contributors.
What are the parts of the periodic square?
- Atomic number - Symbol - Name of element - Atomic mass they are not in order.. Hope i helped :-P
Why is atomic mass of an element an average mass?
The Atomic Mass of an element is the numerical average of all the masses of the naturally occurring isotopes of that element proportionately. Man made elements do not count in supposedly. IE: If we have an element with atomic weight 100 and we have an isotope of that element with atomic weight 102 and if they occurred equally in nature then the Atomic Mass would be 101.
Which main part of an atom determines the atomic number of an element?
The number of protons, which are found in the nucleus of an atom.
What is One of the two main contributors to the double helix model of DNA nucleotides?
The two main contributors areJames WatsonFrancis Crick
How are the atomic mass unit and the atomic weight related?
The mass number is the total amount of protons and neutrons in an atom (the number of protons is the same as the number of electrons) The atomic number is the number of protons (or electrons) in an atom. To find out the number of neutrons in an atom, you need to take the atomic number from the mass number An atom is normally written like this: Mass number Ca Atomic number The Mass number can be written as (A) and the atomic number can be writtens as (Z)
Is iodine a organism?
Iodine is not an organism, it is an element with atomic number 53. It is used to kill microorganisms which is why it is the main component of Betadine.
Why was john Dalton known for the modern atomic theory?
John Dalton was the adept of the atomic theory and a prominent founder.The five main points of John Dalton's atomic theory: · Elements are made of tiny particles called atoms. · All atoms of a given element are identical. · The atoms of a given element are different from those of any other element.
What is the main difference between cobalt and iron?
Iron has an atomic number of 26, which means its atoms have 26 protons in their atomic nuclei. Cobalt has an atomic number of 27, which means its atoms have 27 protons in their atomic nuclei. The number of protons defines an element.
Why does chlorine have a mass number of 35.5 when you cannot have half a proton or neutron in the nucleus?
First some basic terminology for the periodic table:Atomic number: The number of protons in the element's nucleus.Atomic mass: The total mass of the protons, neutrons, and electrons that make up a particular isotope of an elementAtomic weight: The average weight of an elemental atom, taking into account the relative abundance of the element's isotopes. This is getting to the crux of your question - I may not have explained atomic weight that well, but the example of Cl below will better illustrate what I mean by atomic weight. (And btw, 'mass number' isn't a correct way to refer to the atomic weight.)Take the example of Chlorine, or Cl. There are two main isotopes of Cl, 35Cl and 37Cl (there are others but they are very rare, so we'll simplify). We'll now calculate the atomic weight (or as you referred to it incorrectly, mass number) based on the relative abundance and atomic masses of these two isotopes. I'm going to round to even numbers to symplify.Chlorine has an atomic number of 17, so we know all of its isotopes have 17 protons (and therefore 17 electrons).35Cl has 17 protons, 17 electrons and 18 neutrons, while 37Cl has 17 protons, 17 electrons, and 20 neutrons.Because 35Cl and 37Cl have the same number of protons and electrons (as do all isotopes of the same element) they behave very similarly. They are isotopes since they have different numbers of neutrons, and therefore 35Cl and 37Cl have different atomic masses.35Cl has an atomic mass of 35, and 37Cl has an atomic mass of 37.Since 35Cl makes us almost 77% of all Cl isotopes on earth, and 37Cl makes up almost all of the remaining 23% of Cl isotopes on earth, we get the atomic weight by calculating the average weight of Cl.Atomic weight = (% abundance of isotope A * atomic mass of isotope A) + (% abundance of isotope B * atomic mass of isotope B)Atomic weight of Chlorine = (0.77 * 35) + (0.23 *37)Atomic weight of Chlorine = 35.46
