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Bromine is a non metal element. Mass number of it is 80.
Wiki User
∙ 9y ago
Wiki User
∙ 12y agothe mass number for bromine is 79.904
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Aluminum will react with bromine to form aluminum bromide Al2Br6 What mass of bromine g is needed to form 1.42 mol of Al2Br6?
The gram formula unit or molar mass for aluminum bromide is 533.38.* Therefore, 1.42 moles has a mass of 757.4 grams. The mass of 6 moles of bromine atoms is 479.42. Therefore, the mass fraction of bromine in aluminum bromide is 479.42/757.4 or 0.633, and the mass in grams of bromine required to form 1.42 moles of aluminum bromide is 0.633 X 757.4 or 479 grams, to the justified number of significant digits (limited by the precision given for the number of moles.) ___________________ *This is equal to the sum of (2 times the gram atomic mass of aluminum) and (6 times the gram atomic mass of bromine).
Why does bromine have different mass numbers?
Bromine isotopes have different mass numbers because their atoms have different numbers of neutrons.
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 chemical element has atomic number 35?
There is no such element. Atomic numbers represent how many protons are in the nucleus of an atom. Lithium's atomic number is three; it has three protons. An atom with 35.543 protons can't exist because there can't be a fraction of a proton - how can you have 35 and .543 protons? I think perhaps you confused atomic number with atomic mass. Chlorine's atomic mass is 35.543 grams.
How many electrons protons and neutrons are there in an atom of bromine 81?
2, why? Because there is a danish in your back pocket
What is the Mass number of a bromine atom?
Bromine has an approximate atomic mass of 79.904.
What is the atomic number and mass number of bromine?
Bromine is a non meta element. Atomic mass of it is 80.
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.
Bromine has an atomic number of 35 and a mass of 80 why isn't Bromine's atomic number 70?
atomic number is based on the number of neutrons and electrons.
How do you find the protons and neutrons in bromine?
To find the protons in Bromine, atoms always have the same number of protons as their atomic number, so since Bromine has an atomic number of 35, it has 35 protons. To find the average number of neutrons in Bromine, you take the the atomic mass and take away the number of protons (in this case 35), so since Bromine's atomic mass is 79.90, you take away 35 to get the number of neutrons. The average number of neutrons in Bromine is 44.90.
What is the element with the symbol BR?
Bromine is a non metal. atomic number of it is 35.
What is the mass number of Br-79?
Bromine is a non metal element. Atomic mass of it is 80.
How many electrons are present in a bromine atom with a mass number of 87?
52
How many protons and neutrons are in the nucleus of a bromine atom?
There are 35 protons and 35 electrons in the elementary Bromine, BrThe number of neutrons however depends on the isotope mass number of Bromine:There are two stable natural occurring isotopes Br-79(50.5%) and Br-81 (49.5%)To know the number of neutrons one should substract the atom number (35) from the mass number and you'll find the number of neutrons being 44 and 46, because 35 protons with 44 (or 46) neutrons gives you the mass number 79 (or 81)
What is Bromine atomic mass?
Bromine is a metal element. Atomic mass of it is 79.90.
What is the relative atomic mass of bromine?
Bromine is a non meta element. Atomic mass of it is 80.
Aluminum will react with bromine to form aluminum bromide Al2Br6 What mass of bromine g is needed to form 1.42 mol of Al2Br6?
The gram formula unit or molar mass for aluminum bromide is 533.38.* Therefore, 1.42 moles has a mass of 757.4 grams. The mass of 6 moles of bromine atoms is 479.42. Therefore, the mass fraction of bromine in aluminum bromide is 479.42/757.4 or 0.633, and the mass in grams of bromine required to form 1.42 moles of aluminum bromide is 0.633 X 757.4 or 479 grams, to the justified number of significant digits (limited by the precision given for the number of moles.) ___________________ *This is equal to the sum of (2 times the gram atomic mass of aluminum) and (6 times the gram atomic mass of bromine).
