A naturally occurring element identified by the symbol 'X', has the following isotopic composition (the mass of each isotope is given in parenthesis). Calculate the atomic weight of 'X' in amu from these data:  X-20, 90.92% (19.99 amu); X-21, 0.257% (20.99 amu); X-22, 8.82% (21.99 amu).

Q: amino acid methionine is depicted in the picture.  C5H11NO2S is the molecular formula for…

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Q: 5. Which of the following information can be determined from this isotope: sodium 23 L # of protons…

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Q: For two isotopes Unk-45 and Unk-47 with relative abundance’s of 12.3% and 87.7%, respectively, which…

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Q: The metal magnesium consists of 3 isotopes with the following atomic masses and abundances: 24Mg -…

A: Given,  24Mg - 23.99 amu (78.70%) 25Mg - 24.99 amu (10.13%) 26Mg - 25.98 amu (11.17%).

Q: 7. The natural distribution of the isotopes of a hypothetical element is 65.79% at a mass of 281.95…

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Q: An element has three naturally occurring isotopes with the following masses and abundances= Isotopic…

A: Given  Isotope  Mass            Fractional abundance    19.992    ( m1 )                    0.9048 (…

Q: An element consists of 90.51% of an isotope with an atomic mass of 19.992 amu of 0.27% of an isotope…

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Q: an element is a mixture of two isotopes. one isotope of the element has an atomic mass of 34.96885…

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Q: If an isotope has 90 protons, how many neutrons are required in order for it to have a stable atomic…

A: Concept-: Isotope: Isotopes are known as members of a family of an element which all have the same…

Q: Variations in average atomic mass may be observed for elements obtained from different sources.…

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Q: Determine the relative atomic mass of chlorine if (with RAM 34.969) and (with RAM 36.966) have…

A: Atomic mass of Cl-35 = 34.969  Percentage abundance of Cl-35 = 75.5%  Atomic mass of Cl-37 = 36.966…

Q: Consider the three stable isotopes of Oxygen with their respective atomic masses:         O =  16…

A: Atomic mass of an element which is shown in modern periodic table is the average atomic mass of all…

Q: A particular element exists in two stable isotopic forms. One isotope has a mass of 34.969 u (75.77%…

A: Given,Mass of one isotope (m1) = 34.969u.Abundance = 75.77% = 0.7577.Mass of second isotope (m2) =…

Q: Write the empirical formula corresponding to each of the following molecular formulas: (a) Al;Bre;…

A: Empirical formula gives simple whole number ratio of atoms of various elements present in one…

Q: A certain element consists of two stable isotopes. The first has an atomic mass of 106.9051 amu and…

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Q: The average atomic mass of lithium is 6.941 amu. Lithium has two naturally occurring isotopes, 6Li…

A: Given:The average atomic mass of lithium = 6.941 amu% of Li isotopes = 6Li (7.52%) and 7Li…

Q: An element has an atomic number of 41 and a mass number of 81. Using your determination as to…

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Q: Which of the following hypothetical isotopes have the same mass number? Note: the number before the…

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Q: Element: Uranium Mass Abundance Abundance Number of Neutrons Number of Name of isotope (amu) (%)…

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Q: atomic mass of this factious element.

A: Atomic mass of of one isotope(M1) =56.44 % Abundance (X1) = 42.5 % Atomic mass of 2nd isotope(M2) =…

Q: Calculate the atomic weight of copper, which has two isotopes with the following properties:…

A: Copper, in nature , exists in the form of two stable isotopes. They are Copper-63 and Copper-65. It…

Q: Estimate the average mass of element Y, if it is composed of two isotopes. The first isotope have a…

A: Average atomic mass = f1M1 + f2M2 +… + fnMn Where f = fraction representing the natural abundance of…

Q: 2. Element "X" has 2 naturally occurring isotopes with the following masses and natural abund X-69…

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Q: A sample of the nonexistent element mythium consists of 25.59% of an isotope with mass number 580,…

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Q: A particular element exists in two stable isotopic forms. One isotope has a mass of 62.9296 amu…

A: Mass of one isotope (A) = 62.9296 amu.Abundance = 69.17% = 0.6917.Mass of second isotope (B) =…

Q: Hi, I was wondering if you could help me with a question. Do I just take the percentage of each…

A: The isotopes of magnesium have following natural abundances: Isotope Abundance Mass (amu)…

Q: Gallium has 2 naturally occurring isotopes, 69Ga and 71Ga. If 69Ga has an exact isotopic mass of…

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Q: A hypothetical element X is found to have an atomic mass of 37.45 amu. Element X has only two…

A: Given, Atomic mass of element X = 37.45 amu Element X consist of two isotopes- 1. X-37 2. X-38…

Q: Consider that element W has three naturally occurring isotopes with the following percent…

A: Given: Isotope with a mass number of 40 is 53.0% abundant; Isotope with a mass number of 44 is 27.0%…

Q: One isotope has an atomic weight of 408.5 atm and a percent abundance of 23.0% while the other…

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Q: Calculate the atomic weight of antimony, which has two isotopes with the following properties:…

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Q: 26. An element has 2 stable isotopes. The mass of one is 68.9257amu and its abundance is 60.4%. The…

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Q: The correct way to write the isotopes 2Na, AI, Kr, 19r in hyphenated form is sodium-24, aluminum-29,…

A: The correct answer about hyphen notations are given below

Q: Calculate the atomic mass of element "X", if it has 2 naturally occurring isotopes with the…

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Q: Consider the isotope nickel-60 which has the following nuclear symbol, nickel-60.  Which statement…

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Q: The weight of the hypothetical element Gg is 105.99 amu. Element Gg was found to have 3 stable…

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Q: Calculate the atomic mass of an element Y if Y has 2 naturally occurring isotopes with the following…

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Q: A certain element consists of two stable isotopes. The first has a mass of 138 amu and a percent…

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Q: Copper has two stable isotopes with the following atomic masses: copper-63 (atomic mass = 62.9296…

A: Given: average atomic mass of copper = 63.546 amu atomic mass of copper-63 = 62.9296 amu atomic mass…

Q: 8. Complete the following table with the appropriate data for each isotope given (all are neutral…

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Q: A certain element consists of two stable isotopes. The first has a mass of 138 amu and a percent…

A: Given  Atomic mass of first isotope ( M1 )       = 138 amu  percentage natural abundance ( P1)     =…

Q: Which of the following statements is/are incorrect? Select all that apply. You may choose more than…

A: Answer: Here, only the last option is incorrect, other than that the rest of the options given about…

Q: 5. Gallium has two naturally occurring isotopes with the following masses and natural abundances.…

A: The average atomic mass of an element having isotopes can be calculated from the formula given…

Q: Calculate the atomic mass of silver if silver has 2 naturally occurring isotopes with the following…

A: Average Atomic Mass:-Mavg = M1 n1 + M2 n2n1 + M2M1 & M2 are atomic masses of isotopes 1 and 2n1…

Q: Rubidium has two naturally occurring isotopes: 85Rb and 87Rb. The natural abundance of 85Rb is…

A: Given,  Rubidium has two naturally occurring isotopes : 85Rb and 87Rb Relative abundance of 85Rb =…

Q: A certain element consists of two stable isotopes. The first has a mass of 113 amu and a percent…

A: To find out the mass of the element, multiply both mass of isotopes and their natural abundance. You…

Q: A certain element consists of two stable isotopes. The first has a mass of 68.9 amu and a percent…

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Q: Write isotopic symbols in the form X–A (e.g., C-13) for the given isotope. The uranium isotope with…

A: The nuclear reactions are a type of chemical processes which lead to the formation of some new…

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.