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An atom has an atomic mass of 101g and has 57 neutrons what is the atomic number?
If an atom has an atomic mass of 101g and 57 neutrons, then:Atomic Mass = (number of protions) + (number of neutrons) 101 = (X) + (57) or.... (101) - (57) = x 101-57=44 the element that has 44 as its atomic number would be RutheniumAs we know mass of atom is primaril constituted by the neutrons and protons,while the mass of electron is neglegible.Taking mass of proton equal to mass of neutron and both having a unit mass.we can say that mass of an atom is equal to the number of protons and neutrons multiplied with the mass of i proton/neutron.we are given mass of lithium =7=>(no. of neutron + no. of protons)*(mass of 1 proton/neutron)=7=>no. of neutrons + no. of protons *(1)=7=>no. of neutrons=7-no. of protons=>no. of neutrons=7-3 (atomic no=no. of protons)=>no. of neutrons=4
The molar mass of aluminum is approximately how grams?
The approximate atomic weight (not molar mass) of aluminium is 26,98 amu.The value after IUPAC Table of atomic weights is 26,981 538 57(1).
What is the unknown substance if it is determined that is has 55 protons 57 neutrons and 1 valence electron?
It is a Cesium isotope, with the atomic mass of 112.It could also be an ion depending on how many total electrons it has.
How many neutrons down lanthanum-141 have in its nucleus?
Lanthanum's atomic number is 57 thus it has 57 protons, the number of protons an atom has is equal to the atomic weight, in this case 141 minus the number of protons or 57 so, 141-57=84 Lanthanum-141 has 84 neutrons.
How many neutrons are found in one atom of iron element?
There are 4 stable diifferent atoms of iron (isotopes), all having 26 protons. (The atomic number of iron is 26)These isotopes differ in atomic mass, ranging from 54, 56, 57 and 58.Isotope Fe(56) is the most abundant in nature: 92%Number of neutrons = Atomic mass of an isotope - atomic number of the isotopeSo the answer is: 28, 30, 31 and 32 neutronsrespectively
An atom has an atomic mass of 101g and has 57 neutrons what is the atomic number?
If an atom has an atomic mass of 101g and 57 neutrons, then:Atomic Mass = (number of protions) + (number of neutrons) 101 = (X) + (57) or.... (101) - (57) = x 101-57=44 the element that has 44 as its atomic number would be RutheniumAs we know mass of atom is primaril constituted by the neutrons and protons,while the mass of electron is neglegible.Taking mass of proton equal to mass of neutron and both having a unit mass.we can say that mass of an atom is equal to the number of protons and neutrons multiplied with the mass of i proton/neutron.we are given mass of lithium =7=>(no. of neutron + no. of protons)*(mass of 1 proton/neutron)=7=>no. of neutrons + no. of protons *(1)=7=>no. of neutrons=7-no. of protons=>no. of neutrons=7-3 (atomic no=no. of protons)=>no. of neutrons=4
How many moles are in 57 grams of Xenon?
To find the number of moles in 57 grams of Xenon, divide the given mass (in grams) by the molar mass of Xenon. The molar mass of Xenon is 131.3 grams/mol. Therefore, 57 grams of Xenon is equal to 0.434 moles (57/131.3).
The molar mass of aluminum is approximately how grams?
The approximate atomic weight (not molar mass) of aluminium is 26,98 amu.The value after IUPAC Table of atomic weights is 26,981 538 57(1).
Elemental exonium not a real element consists of two major isotopes Abundance Mass 57 percent 96 amu 43 percent 117 amu What is the atomic weight for exonium Answer in units of amu please help?
(.57*96amu)+ (.43*117amu) = total amu =54.72amu + 50.31amu =105.03amu
What is the unknown substance if it is determined that is has 55 protons 57 neutrons and 1 valence electron?
It is a Cesium isotope, with the atomic mass of 112.It could also be an ion depending on how many total electrons it has.
How many neutrons would be present in the nucleus of an atom of iron-56?
I am understanding you to mean an iron-57 ion with a charge of 3+.The atomic number of Fe is 26, which means that all Fe atoms or ions have 26 protons in their nuclei.In a neutral Fe atom, the number of electrons would be the same as the number of protons, which is 26. The charge on the Fe ion is 3+, which means the Fe atom has given up 3 electrons. So the number of electrons in an Fe3+ ion is 26-3, which is 23.The mass number of iron-57 = 57. The mass number is the sum of protons and neutrons in the atomic nuclei of iron-57 atoms. We know the number of protons is 26. The number of neutrons = mass number - the number of protons, which is 57-26 = 31 neutrons.To summarize:The number of protons in all Fe atoms is 26.The number of electrons in an any Fe3+ ion is 23.The number of neutrons in an iron-57 atom is 31.
How many lanthanides and actinides are there?
There are 15 lanthanides (atomic numbers 57-71) and there are 15 actinides (atomic numbers 89-103)
How many neutrons down lanthanum-141 have in its nucleus?
Lanthanum's atomic number is 57 thus it has 57 protons, the number of protons an atom has is equal to the atomic weight, in this case 141 minus the number of protons or 57 so, 141-57=84 Lanthanum-141 has 84 neutrons.
How many neutrons are found in one atom of iron element?
There are 4 stable diifferent atoms of iron (isotopes), all having 26 protons. (The atomic number of iron is 26)These isotopes differ in atomic mass, ranging from 54, 56, 57 and 58.Isotope Fe(56) is the most abundant in nature: 92%Number of neutrons = Atomic mass of an isotope - atomic number of the isotopeSo the answer is: 28, 30, 31 and 32 neutronsrespectively
How many centimeters 57 in?
By unit of length and mass and conversion ,we can say that 1 in =2.545 cm 57 in=144.78 cm
Atomic number La?
Lanthunum is a meta element. Atomic number of it is 57.
How many protons and neutrons does the element MO have?
Molybdenum-96 (not Mo-96) or Mo 96 42 has 42 protons and 54 neutrons. The atomic number is number of protons The mass number minus the atomic number is number of neutrons
