The natural isotopes of boron are B-10 and B-11. If borons atomic mass is 10.81 amu, what is the percent abundance of B-10 and B-11? Select one: a. B-10 is 19% and B-11 is 81% b. B-10 is 35% and B-11 is 65% c. B-10 is 75% and B-11 is 25% d. B-10 is 25% and B-11 is 75%

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A: The given atomic masses and % abundance are: mass of isotope (amu) % abundance 83.9134 0.56…

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A:

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Q: What is the mass of 4.50 x 10- Cu atoms? Multiple Choice 7.47 x 10 amu 7.47 x 10 g 4.75 g 63.55 amu

A: Calculation of mass of cu atom:

Q: 30 si Use the atomic masses on the table below to calculate Am for the change 14 2 "N. u Which is…

A: The reaction given is, =>

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A:

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Q: A) If a cube from this element contains 2.35x1022 atoms, calculate the mass ( in grams)

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A:

Q: On earth, tin has 10 different stable isotopes. The heaviest, 124 Sn makes up 5.80% of naturally…

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Q: ilicon has three common isotopes, with the masses and isotopic abundances shown elow: licon-28 --->…

A: Given-> M1= 27.98 u.        P1=0.882% M2=28.98u.           P2=0.018% M3=29.97 u.

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A: ]Average atomic mass=Σ%abundance x mass of isotope100

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A: Average atomic mass has Following formula - Average atomic mass = atomic mass of first isotope × % +…

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Q: An unknown element is a mixture of 129X and 132X. the average mass of X is 130.79 amu. What is the…

A: Let x be the percentage abundance of 129X and (1-x)  be for 132X Average mass = 130.79 amu  Atomic…

Q: 2.5.1 Boron has two naturally occurring isotopes, 1°B and "B, which have masses 10.0129 and 11.0093…

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A: Boron has two isotopes which are B-10 and B-11. It is given that the abundance of B-11 is x and for…

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Q: Assume magnesium has three major isotopes in nature as shown in the table below. Fill in the missing…

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Q: Naturally occurring chlorine is composed of two isotopes: 75.76 %% Cl-35Cl-35 (mass of 34.9688…

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Q: How many carbon atoms are there in 10 Ibs of sugar, CH,,0̟,? 22 11 Select one: a. 159 atoms O b. 8.0…

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Q: Boron (B;Z=5) has two naturally occurring isotopes. Find the percent abundances of ¹²B and ¹¹B given…

A: The given data contains, B = 10.0129 amu. 11B = 11.0093 amu.

Q: An unknown element is a mixture of isotopes ¹²⁰X and ¹²²X. The average atomic mass of X is 121.47…

A: For an element that exists as a number of isotopes, its atomic mass is calculated by taking an…

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Q: Antimony has two naturally occuring isotopes, Sb121 and Sb123. Sb121 has an atomic mass of 120.9038…

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Q: The image shows a representative sample of 50 atoms of a fictious element, called lemonium (Le).…

A: The average atomic mass of an element with three isotopes is given by  Avg atomic mass =…

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Q: uestion 16 of 27 > atomic mass of 122.9042 u. Antimony has an average atomic mass of 121.7601 u.…

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Q: (2) This element has three naturally occurring isotopes–35.934512 amu, 36.893327 and 38. 825622. The…

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Q: Mass

A:

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.