The element boron has two stable isotopes: boron-10 (10.0129 amu) and boron-11 (11.0093 amu). The periodic table reports a mass for boron as 10.811. What is the natural abundance of each boron isotope? Part 1: B-10 = ?% Part 2: B - 11 = ?%

Q: 16.The atomic masses of * Cl (75.53 percent) and "Cl (24.47 percent) are 34.968 and 36. 956 a.m.u.,…

A: Introduction: Chlorine belongs to group 17 elements with atomic number 17 and mass 35.45 amu. Group…

Q: An unknown element is a mixture of isotopes ¹²⁹X and ¹³²X. The average atomic mass of X is 130.79…

A: The isotope of the unknown element is given as 129X and 132X.  The average atomic mass of X is given…

Q: Almost all boron atoms are found in two forms: boron-10 and boron-11. Both isotopes behave alike…

A: Given, Boron atoms are found in two forms: boron-10 and boron-11 Average mass of B = 10.81 amu

Q: Relative number of atoms The stable isotopes of iron are 54F., 56FE, 57Fe, and 58F.. The mass…

A:

Q: An unknown element is a mixture of isotopes ¹²⁹X and ¹³²X. The average atomic mass of X is 130.13…

A:

Q: An unknown element is a mixture of isotopes 120X and 122X.  The average atomic mass is 120.70.  What…

A: Suppose percentage abundance of 122X = A percentage abundance of  120X = (100 - A) Fraction of 122X…

Q: . An element has three stable isotopes with masses of 27.977 amu, 28,976 amu, and 29.973 amu. The…

A:

Q: The atomic weight of Ga is 69.72 amu. There are only two naturally occurring isotopes of gallium: 69…

A: Given atomic weight of Ga is 69.72 amu

Q: A newly discovered element consists of only two naturally occurring isotopes. Isotope A has an…

A: Given : There are two naturally occurring isotopes of an element. Atomic mass of isotope A = 204.5…

Q: 6. Isotopes. Silicon (Si) is a major component of semiconductor chips. It has three naturally…

A: Calculate electron, proton and neutron in each case---

Q: The atomic masses of 6 Li and7Li are 6.0151 amu and 7.0160 amu, respectively. Calculate the natural…

A: The natural abundance of the heaviest isotope is to be calculated.

Q: An unknown element is a mixture of isotopes 120X and 122X. The average atomic mass of X is 121.03…

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

Q: An unknown element is a mixture of isotopes ¹²⁹X and ¹³²X. The average atomic mass of X is 129.47…

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

Q: Calculate the relative percent abundance of 6Li given the following information: mass of 6Li =…

A: Given mass of 6Li = 6.01512 umass of 7Li = 7.01699 u

Q: The atomic weight of Cl is 35.45 amu. There are only two naturally occurring isotopes of chlorine:…

A: Given  The average atomic weight of Cl = 35.45 amu  The weight of 35Cl   = 35 amu  The weight of…

Q: an abundance of 2.365%. What is the abundance of the first isotoper a. 4.479% b. 6.957% d. 80.913%…

A:

Q: Boron consists of two isotopes. The reported mass of boron is the weighted average of these two…

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…

Q: An unknown element X has the following isotopes: ²⁵X (80.50% abundant, mass = 25.03 amu) and ²⁷X…

A:

Q: A made up element ey has three natural isotopes. The isotopes each have an atomic mass of 33.02…

A:

Q: The natural abundance for element "X's" isotopes are: 19.9% 10X (10.013 amu) and 80.1% 11X…

A: Given, an element X and has two natural isotopes with abundance of19.9% of X10(10.013 amu) and 80.1%…

Q: Titanium has five common isotopes: 46Ti (8.000%, 45.95 amu), 47 T (7.800%, 46.95 amu), 48Ti (73.40%,…

A: Given 46Ti (8.000%, 45.95 amu), 47 Ti (7.800%, 46.95 amu), 48Ti (73.40%, 47.95 amu), 49Ti (5.500%,…

Q: The element silicon has 3 naturally occurring isotopes, 28Si (27.976927 u); 29Si (28.976495 u) and…

A:

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…

Q: Naturally occurring thallium consists of two stable isotopes, Tl-203 and TI-205 atomic masses =…

A:

Q: Tungsten is a rare metal found naturally on earth almost exclusively combined with other elements in…

A:

Q: an unknown element is a mixture of isotopes 120X and 122X. the average atomic mass of X is…

A:

Q: chlorine has two different isotopes. one isotope has a mass of 35.00 amu and another has a mass of…

A: Average atomic mass of Chlorine depends on the relative abundance of the isotope present in the…

Q: What if a new element, Tyserium (Ty), was discovered and was found to have two isotopes, Ty-331…

A: Average atomic mass can be calculated by using the formula: MTy=(% abundance of of…

Q: Mg (24.305 amu) consists of three isotopes with the masses 23.9850 amu ,24.9858 amu, and 25.9826.The…

A: We have to predict the percentage abundance of first isotope.

Q: Consider the table below. What is the relative abundance of isotope A? Isotope Abundance A 65 B 115…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: 13. Consider the table below. What is the relative abundance of isotope A? Isotope Abundance A 65 B…

A: Abundance of A (Abd A) = 65 Abundance of B (AbdB) = 115 Abundance of C (AbdC) = 20 Total Abundance…

Q: An element has three stable isotopes with masses of 27.977 amu, 28.976 amu, and 29.973 amu. The…

A: The average atomic mass of an element is calculated by considering the atomic mass of each isotope…

Q: A generic element, Q, has two isotopes, 195Q and 190Q, and an average atomic mass of 191.86 amu. The…

A: Given- Average atomic mass of Q = 191.86 amu Natural abundance of isotope 195Q = 38% Natural…

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

A: The atomic mass of an element is the weighted average of the masses of its isotopes. We know that,…

Q: What is the mass of one atom of I? O 2.107 x 10 22 8. O 3.443 x 1023 O 4.745 x 10-22 g O 6.641x…

A: To find mass for one atom of an element, divide the atomic mass of an element by avogadro number. It…

Q: What is the average atomic mass of an element that has 3 isotopes with the data below? Isotope…

A: Average Atomic mass=((molecular mass Isotope 1 x % abundance )+(molecular mass Isotope 2 x %…

Q: How many neutrons are in 37.0 ug ( ug= 10^-6 g) of 14 6 C?

A: Given :- mass of 6C14 is 37.0ug  1ug = 10-6 g  To be calculated :-  Total number of neutrons

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

A: The average atomic weight formula is given as follows: average atomic weight=∑mass of…

Q: An imaginary element Xq consists of two isotopes having masses of 100.0 amu and 102.0 amu. A sample…

A: When an element exists in the form of two or more than two isotopes, the term average atomic mass Is…

Q: In nature, Titanium has five stable isotopes. If the atomic masses and the relative abundances for…

A: Given, the atomic masse and their relative abundance of first four isotopes of Titanium are as…

Q: An unknown element is a mixture of isotopes 151X and 153X. The average atomic mass of X is 151.69…

A:

Q: Abundance = 74.200%, Mass(u) = 45.95263 Abundance = 14.500%, Mass = 47.94795 Abundance =…

A: The atoms of same elements having identical atomic number but have different masses are termed as…

Q: [Atomic mass and isotopes] An unknown element has two naturally occurring isotopes: X- 69 and X-71.…

A: Given Natural  abundance of X-71 = 49.31% Mass of X-71 = 70.9163 amu

Q: 10...oclD3D8 Formula: Avg Atomic Mass: [ (Mass)x(% abundance) + (Mass)x(% abundance) + (Mass)x(%…

A: Answer given as follows

Q: How many atoms are in the sugar in this cup?

A: Given :- mass of sucrose = 180 g  To calculate :- number of atoms in sucrose

Q: Abundances 0.005% 0.720% 99.275% O a. 238.028 O b. 234 O c. 237 O d. 237.80 Relative masses…

A:

Q: 2.10. Thallium has two naturally occurring isotopes, 203TI and 205TI and has an average atomic mass…

A: Note : As per our company guidelines  we can answer 1st question .Kindly repost the question.

Q: Silver has two isotopes, one with 60 neutrons (percent abundance = 51.839%) and the other with 62…

A: Given: Silver has two isotopes. percent abundance of Isotope with 60 neutrons ( Ag47107 ) = 51.839%…

Q: A hypothetical element, M, has four stable isotopes with the masses shown below. 109M = 108.9842…

A:

Q: The atomic weight of Ga is 69.72 amu. There are 69.0 amu, and Ga, with a weight of 71.0 amu. The…

A: Let the percentage of the isotope 69Ga be =x%Then,The percentage of the isotope 71Ga is =(100−x)%

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.