Part A Determine the number of protons and neutrons in plutonium-239 and enter its symbol in the form X. Express your answer as an isotope. ΑΣΦ ? A chemical reaction does not occur for this question. Submit Request Answer

Q: An element has two naturally occurring isotopes. Isotope 1 has a mass of 184.9530 amuamu and a…

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Q: A new element named catsium is added to the periodic chart. One of the numbers written below the…

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Q: Performing the same experiment described on your lab manual, a student used a 0.400 g sample of…

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Q: onsider an element which has 4 isotopes.  You need to identify the element using isotopic masses and…

A: Isotopes are those which have the same number of protons, but they have the different number of…

Q: An unknown sugar is found to have a molecular weight of 180.18 amu. The sugar contains 40.O %…

A: Given data  Element composition (mass %) C 40 H 6.7 O 53.3 Molar mass of sugar = 180.18…

Q: Cs+ and I- Express your answer as a chemical formula.

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Q: A nucleus of mass number 35 contains 19 neutrons. write the formula for this monoatomic element.…

A: A nuclide is represented by the formula A is the total number of protons and neutrons. Z is the…

Q: . What is the 3rd most prevalent element in the human body (name, not symbol)?

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Q: An unknown element (Uk) has three isotopes, seen in the table. One of the percentage values is…

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Q: Write the symbol for every chemical element that has atomic number greater than 32 and atomic mass…

A: The aggregate number of protons present in a particular element is its atomic number and the sum of…

Q: Silicon has three naturally occurring isotopes (Si-28, Si-29, and Si-30). Masses and natural…

A: From the values given in the table we will first calculate the abundance if Si-30 as shown in the…

Q: An unknown element is determined to have two naturally occurring isotopes. Isotope 1 has a mass of…

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Q: Boron has 2 commonly occurring isotopes. 19.9% of Boron atoms have 55 neutrons and 55protons,…

A: We have to calculate the expected mass of B.

Q: A = 45, with 24 neutrons Express your answer as a chemical symbol. 2 ΑΣΦ Submit 4 C A chemical…

A: Given,  The mass number of an atom A = 45 and  number of neutrons = 24. The chemical symbol of an…

Q: Refer to the Pb-207 ion with a 4+ charge, which can be found in the Tests section. (If you cannot…

A: Atomic number- The number of protons or electrons present in an atom called as atomic number. For an…

Q: Silicon dioxide is the principle component in (window) glass. Approximately how many prc silicon…

A: We will calculate total number of proton

Q: An unknown element is determined to have two naturally occurring isotopes. Isotope 1 is 62.11%…

A: Atomic mass of element can be determined by adding the product of %abundant and mass of isotopes.…

Q: 1)the chemical symbol found on the periodic table is ?  2) the number of protons for the product is…

A: 1.Now we know that the number must be same on both the product as well as the reactant Side and we…

Q: I am working on question 25 of chapter 2 in the chemistry openstax second edition.  The question is…

A: The equation is correct. In the equation x is the fraction of isotope with atomic mass 10.0129 amu…

Q: . Polonium-210 is an alpha-emitting radioactive isotope that causes irreversible damage to organs…

A: Two questions based on nuclear reactions and general chemistry that are to be accomplished.

Q: Write the atomic symbol for the isotope with mass number 84. Express your answer as an isotope.…

A: An atom is made up of electrons, protons, and neutrons. The nucleus of the atom contains the…

Q: 5. Boron exists as two isotopes, Boron-10 and Boron-11. The average atomic mass for boron on found…

A: Isotopes are the chemical species having same atomic number but different mass number. Isotopes of…

Q: An unknown compound has the following chemical formula: where r stands for a whole number.…

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Q: A metal (M) forms an oxide with the formula M2 O. Part A If the oxide contains 53.54 % O by mass,…

A: A metal forms an oxide with the formula M2O. If the oxide contains 53.54% O by mass. The identity of…

Q: Question 11- Two isotopes of the element Fa occur naturally, with 282145 Fa At 23.4% (281.7 amu) and…

A: The atoms mass is the mass of neutrons and protons of an atom. The weighted average mass method can…

Q: What is the relative atomic mass of the element that consists of the following isotopes in the…

A: Given,

Q: Weighted average calculation. enter your answer to 2 decimal points. If Chlorine had only two stable…

A: Average atomic mass of Chlorine using natural abundance of its isotopes can be calculated as…

Q: a) An element has two naturally occurring isotopes. Isotope l has a mass of 120.9038 u and a…

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Q: The radioactive nuclide with the symbol 75Se is used to measure the shape of the pancreas. What is…

A: The atomic number of Se is 34 and the mass number of this radioactive nuclide of Se is 75. Atomic…

Q: Based on TABLE 3, if an additional 10.12% of pure 7Li is added to a natural lithium sample what is…

A: Note: Since you asked multiple questions in a single image. So here is the solution to first…

Q: Complete the table below, using the diagram of an atom shown at right. name symbol 0 0 n 0…

A: Complete the table, using the diagram of an atom.

Q: Calculate the average atomic mass for the hypothetical element X if X has 2 naturally occurring…

A: When an element is present in more than one isotopic form. Then we need to calculate average atomic…

Q: Sulfur,the 5th most common element on Earth, is a key component of the amino acids cysteine and…

A: Sulfur, the 5th most common element on Earth, is a key component of the amino acids cysteine and…

Q: There are only two naturally-occuring stable Isotopes of chlorine, the masses of Periodic Table to…

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Q: There are only two naturally-occuring stable isotopes of lithium. The mass and natural abundance of…

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Q: Silver has an atomic mass of 107.868 amu. The Ag-109 isotope (108.905 amu) is 48.16%. What is the…

A: Answer: When more than one isotope of an element is present in the nature then its atomic mass is…

Q: QUESTION 1. Isotopes of a chemical element have all the same chemical characteristics. However, once…

A: Sinc Corn  have more 13C than any  other plants(normally). Thus we got the result hamburger meat was…

Q: Part 1. Express your answer as an isotope. Part 2. Express your answer as an isotope.

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Q: Antimony (Sb), has two naturally occurring isotopes: Sb-121 that has a percent abundance of 57.30 %…

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Q: Gallium consists of two isotopes, gallium-69 and gallium-71. Gallium-69 has a mass of 68.926 u and a…

A: Fractional abundance is the abundance shown in the fraction. It is the proportion of various isotope…

Q: In Star Trek, a (fake) element that often plays a role in the plot is dilithium (Dt), which has…

A: Since the % abundance is not given exactly, it is a variable, thus answer will be given in terms of…

Q: Incomplete Chlorine has two naturally stable isotopes: 35 CI (34.968853 amu) and 37 CI (36.965903…

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Q: A compound is 32.88% C, 4.14% H, 19.18% N and 43.80% O by mass, and it has a molar mass of 219…

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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.