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Answered 2014-11-22 10:37:36

Boron is a non metal element. Atomic mass of it is 10.81.

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What is the atomic weight of B?

The atomic mass of Boron (B) is 11 but to be more accurate, the atomic mass is 10.81.



What is the atomic mass of B if 19.9 percent of all B atoms have a mass of 10.01 amu and 80.1 percent have a mass of 11.01 amu?

Given : Atomic mass of B = 10.01 amu , % = 19.9 let it be A Atomic mass of B = 11.01 amu , % = 80.1 Solution : A and B are approximately in the ratio 1:4. Isotopic mass = [(proportion of A X at. mass of A) + (proportion of B X at. mass of B)] / 4 = [(1 X 10.01) + (4 X 11.01)] / 4 = (10.01 + 44.04) / 4 = 54.05 / 4 Isotopic atomic mass = 13.512 amu ---- Therefore, isotopic atomic mass of B is = 13.512 amu.


What changes in atomic number and mass number occur in beta emission?

a. atomic #: -2, Mass #: -4 b. atomic #: +1, Mass #: no change c. atomic #: -1, mass #: no change d. atomic #: -1, mass #: no change


What is the average atomic mass of an element with isotopes a b and c?

(mass of A) x (%of A) + (mass of B) x (% of B) + (mass of C) x (% of C)



How do you calculate the atomic mas based on the number of protons and neutrons of an atom?

Atomic mass is simply the sum of the number of protons and the number of neutrons. If an atom has "A" protons and "B" neutrons, its atomic mass is A + B.




What is the mass number of boron?

Atomic mass number of boron(B) - 11


What is the atomic mass rounded of boron?

Boron - B - Group IIIThe atomic number is 5.The mass number is 11.


What are the elements that border the zigzag line in periodic table?

The elements are classified as metalloids. The elements that border it are: B= Boron Atomic # 5 Atomic Mass 11 Si= Silicon Atomic # 14 Atomic Mass 28 As= Arsenic Atomic # 33 Atomic Mass 75 Te= Tellurium Atomic # 52 Atomic Mass 128 At= Astatine Atomic # 85 Atomic Mass 210


If Element B Has 9 As The Atomic Number And 19 As The Mass Number What is The Answer how many protons does it have?

If Element B Has 9 As The Atomic Number And 19 As The Mass Number What is The Answer how many protons does it have?


What is the isotopic symbol of the most common isotope of the element Boron?

11 B 511 is the atomic mass, B is the atomic symbol and 5 is the atomic number.


How is molar mass and atomic mass different?

Atomic weight: the atomic weight of an chemical element, in atomic mass units or gram atomic mass Atomic mass: the atomic mass of an isotope, in atomic mass units or gram atomic mass Molecular mass: the mass of a molecule, in atomic mass units or gram molecular mass


What is the numerical setup for calculating the average atomic weight of carbon?

The general formula for calculation is:Atomic weight = (atomic mass of the isotope a X fraction of the isotope a) + (atomic mass of the isotope b X fraction of the isotope b) + .......(atomic mass of the isotope n X fraction of the isotope n)Don't confuse atomic weight with atomic mass, mass number or atomic number.For carbon:Atomic weight = (12 x 0,9893) + (13,0033548378 x 0,0107) = 12,0107After IUPAC tables from 2009 the atomic weight of carbon is writed as[12,0096; 12,0116].


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


What is the atomic mass-?

The atomic mass is the mass of a molecule, atomic particle or sub-atomic particle.


Difference between atomic number and atomic mass?

atomic number is a number atomic mass is a mass


What is the nonmetal found in period 2 of the periodic table?

Boron- B Atomic Number- 5 Atomic Mass- 10.811


What is the difference between atomic mass and atomic mass unit?

The atomic mass unit is used to express the measure of the atomic mass.


How are the nucleus and atomic mass related?

Atomic mass is the sum of the mass of all particles found in an atom. All particles (protons, neutrons and electrons) have a certain mass, and adding it together will give you the atomic mass of that particular element. Therefore, most of the atomic mass is found in the nucleus of the atom, because: A. There are many more protons and neutrons than electrons in most atoms B. Protons and neutrons have a much greater atomic mass that electrons.


The equation of atomic mass?

== The equation of atomic mass is protons+nuetrons== atomic mass. ===


What is the atomic mass of colbat?

Cobalt is an atomic mass of 58.93 atomic mass units


What is the atomic mass number of beryllium?

The atomic mass is the same as the atomic weight therefore it is 9.01218. Beryllium is a non metal element. Atomic mass of it is 9.01. The atomic mass number, which is distinct from the atomic mass and the atomic weight, is 9.


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