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What element has an atomic mass of 81?
The chemical element halogen bromine (Br) has an atomic weight (not mass) of 79,904 and 35 protons.
How do you calculate the atomic mass of thalium?
To calculate the atomic mass of thallium, you need to consider the weighted average of the isotopes of thallium found in nature, based on their abundance. You multiply the mass of each isotope by its relative abundance, then sum these values to get the atomic mass. The atomic mass of thallium is approximately 204.38 grams per mole.
How many neutrons are contained in an atom of barium - 136?
The atomic number of barium is 56. So there are 56 protons and 56 electrons.
How many neutrons does barium have?
Each isotope of an element has a different number of neutrons.Number of neutrons = Atomic mass of the isotope - Atomic number of the elementThe atomic number of barium is 56.For a list of barium isotopes see the link below.The answer it wants is 81.
What is the number of neutrons in 1 atom of baruim?
The number of neutrons in one atom of barium is typically 81. Barium has an atomic number of 56, which represents the number of protons in the nucleus. The number of neutrons is calculated by subtracting the atomic number from the atomic mass (usually rounded to the nearest whole number).
What is the is the atomic mass of thallium?
Thallium is a meta element. Atomic mass of it is 204. Atomic number of it is 81.
What is the atomic notation for an isotope that has an atomic number of 35 and a mass of 81?
The atomic number 35 corresponds to bromine, and the symbol would be 81Br.
What element has an atomic mass of 81?
The chemical element halogen bromine (Br) has an atomic weight (not mass) of 79,904 and 35 protons.
How do you calculate the atomic mass of thalium?
To calculate the atomic mass of thallium, you need to consider the weighted average of the isotopes of thallium found in nature, based on their abundance. You multiply the mass of each isotope by its relative abundance, then sum these values to get the atomic mass. The atomic mass of thallium is approximately 204.38 grams per mole.
What are the atomic number and mass number of bromine?
The mass number is the som of protons and neutrons in the atomic nucleus of a chemical element. Each isotope has a different mass number. For natural isotopes of bromine the mass numbers are 79 and 81.
What atom has an atomic number of 56 and a mass number of 137 amu?
Barium has an atomic number of 56 and a mass number of 137 amu
How many neutrons are contained in an atom of barium - 136?
The atomic number of barium is 56. So there are 56 protons and 56 electrons.
What is bigger the atomic mass or atomic number?
Atomic no.=no. of protons Atomic mass=no. of protons+no. of neutrons Hence, atomic mass is greater
How many neutrons does barium have?
Each isotope of an element has a different number of neutrons.Number of neutrons = Atomic mass of the isotope - Atomic number of the elementThe atomic number of barium is 56.For a list of barium isotopes see the link below.The answer it wants is 81.
What is the atomic mass-?
The atomic mass is the mass of a molecule, atomic particle or sub-atomic particle.
The mass of an atom usually expressed in atomic mass units is its?
Atomic mass
What is the atomic mass of silver?
The atomic mass (or weight) of silver is 107.8682 amu (atomic mass units)
