What is the mass # of an ion with 107 electrons. 158 neutrons, and a +1 charged? Express answer as an integer

Q: An unknown element is a mixture of isotopes ¹²⁰X and ¹²²X. The average atomic mass of X is 120.37…

A: 4. Given that,  An element X has two isotopes such as 120X and 122X. Atomic mass of 120X, MX120 =…

Q: State the number of protons in Ni^2+ Express your answer as an integer.   State the number of…

A: Atomic number (Z) :-  The number of protons present inside the nucleus of an atom is called atomic…

Q: For Neon the relative percent abundances and atomic masses of the isotopes are: Ne-20, 90.92%,…

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Q: A fictitious element only has two naturally occurring isotopes: X and Y. Isotope X 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: Boron (B; Z=5) has two naturally occurring isotopes. Find the percent abundances of 1°B and 11B…

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Q: In the table below, there are descriptions of an experiment on samples of three different chemical…

A: Given that : We have to identify whether the elements are metal or non-metal form the given…

Q: The astronaut then measures the abundance of silicon on the new planet, obtaining the following…

A: Isotopes are defined as the ones which have same atomic number but different mass number. Atomic…

Q: How many neutrons are present in 5.70g of cadmium-106 (isotopic mass = 105.91 amu)? Please enter…

A: Welcome to bartleby ! We have to calculate number of neutrons

Q: 1. Answer the following: a. If a car has an EPA mileage rating of 30.0 miles per gallon, what is…

A: Answers are explained below.

Q: Express your answer in atomic mass units to four significant figures. atomic mass of Rb amu Submit…

A: Atomic mass=atomic mass of 1 atom×%abundance÷100 Calculating average atomic mass multiply percentage…

Q: mplete column 5 of the table, excluding the isotope symbol and the cells that are already filled.…

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Q: Cesium has 39 known isotopes ranging from mass 112 to 151. If a sample of cesium containing only…

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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: Boron has an average atomic mass of 10.81. One isotope of boron has a mass of 10.012938 and a…

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Q: A chemist in an imaginary universe, where electrons have a different charge than they do in our…

A: The idea is the number of electrons is a whole number.  So to find a charge that a “whole multiple”…

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

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Q: An alloy contains 10.8 % titanium by mass and has a density of 13.98 g/cm3. Titanium-49 has an…

A: Number of atoms = 8,926,980,280,926,177,000,000 atoms. Avogadro’s constant = 6.023 × 1023 atoms.…

Q: Which of the following statement is true for atomic mass of 39 19 K ? Group of answer choices   A.)…

A: Which of the following statement is true for atomic mass of 39 19 K ?

Q: Boron (B; Z=5) has two naturally occurring isotopes. Find the percent abundances of 10B and ¹¹B…

A: Answer: This question is based on percentage calculation of isotopes of Boron when average atomic…

Q: 1. A 1.2-gram sample of lanolin was treated with Wij’s solution and excess potassium iodide…

A: Since you have posted multiple questions and not specified which one to solve, we will solve the…

Q: À fictitious element only has two naturally occurring isotopes: X and Y. Isotope X has a mass of…

A: Average atomic mass can be calculated by the following formula. Average mass=∑mass of…

Q: If the radius of a neutron is 1.0 x 10-13 cm, calculate the density of a neutron in g/cm3 . (volume…

A: Given, radius(r) = 1.0 × 10-13 cm we know that the neutron is spherical in shape so the volume of…

Q: Which of the following is the least massive?  a. A neutron b. A proton c. An alpha particle d.…

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Q: 1 (a)What charge is expected on F? Enter answer as -# or +# where # is the charge. b What charge…

A: Cations - These are the ions with positive charge. The atoms which have less than 4 electrons in…

Q: Determine the percent abundance for J-67 and J-68, given the following data: The average atomic mass…

A: We have given four Isotopes of J, so total abundance of these four Isotopes will be 100 % . Thus we…

Q: An element has the following natural abundances and isotopic masses: 81.47% abundance with 45.23…

A: As per the given data: The natural abundances and isotopic masses of three isotopes are: Natural…

Q: Calculate the atomic mass for silicon given the following data for its natural isotopes: 28 Si…

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Q: 3. What is the average atomic mass of hafnium given the following abundance information on its…

A: Average atomic mass can be determined by the equation given below: Avg.atomic mass =…

Q: The element gallium (Ga) exists in two isotopic forms with the following abundances: 60.16% 69GA and…

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Q: Potassium has three naturally occurring isotopes.  According to one source of data, Potassium-39…

A: Average atomic mass of Potassium  = (38.9637 × 0.9326 ) amu + (39.9640 × 0.0001 ) amu + ( 40.9618 ×…

Q: How many protons and electrons are there in a neutral atom of each of the following elements? Part C…

A: A neutral element with atomic number x has x number of protons and x number of electrons.  Here, the…

Q: A hypothetical element exists as two isotopes: I = 85.50 amu and II = 88.70 amu. If the percent…

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Q: How many protons and electrons are there in a neutral atom of each of the following elements? Part A…

A: The atomic number of an element tells about the number of electrons and protons present in an…

Q: 1.)fluorine-20 Express your answers as integers separated by a comma. 2.)cobalt-63 Express your…

A: Let   MEA  where , E = element                 A= atomic number =Number of protons…

Q: Timmy: Titanium has an atomic number of 22, which means it has 22 protons.  The average mass is…

A: For Titanium  atomic number = 22 number of protons = 22 average mass number =number of protons…

Q: 1. From the following isotopic masses and abundances, calculate the atomic weight of Lakerium from…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: In the following table, be sure to enter a number in each box, even if that number is zero (0). T…

A: The atomic number of an atom is the number of protons present in the atom. For a neutral atom, the…

Q: A hypothetical element, M, with average atomic weight of 35.75. M has three stable isotopes with the…

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Q: an oxygen atom with 10 neutrons Express your answer as an isotope. ΑΣφ DA chemical reaction does not…

A: The correct answer is given below

Q: How many electrons, protons, and neutrons are there in an atom ofa40Ca?   a 30 protons, 30…

A: Given : We have to tell how many electrons are electrons, protons , neutrons are there in Ca.

Q: 1 Which atom has the largest number of neutrons? Group of answer choices magnesium-24 calcium-44…

A: 1. The number of protons in the nucleus of the atom is equal to the atomic number. The number of…

Q: 8, How many protons, electrons, and neutrons (respectively) are in an atom of iodine-131?…

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Q: The fictitious element concordium (Cn) has two naturally occurring isotopes: 65C (64.8913 u) and 69C…

A: The solution is as follows :

Q: 65 30Zn 32 16S2 137 Isotopic Symbol Atomic No. 30 (4) (8) Nuclear (1) (5) +56 Charge Mass No. 65 (6)…

A: For an element AzX, where z= the atomic number of element "X" and A= the atomic mass of element "X".

Q: Be sure to answer all parts. Copper has two naturally occurring isotopes, 6Cu (isotopic mass 62.9296…

A: The percentage for a particular isotope that formed in nature is known as percent abundance.

Q: Fill-in the table with the necessary information. Element Atomic Number Mass Number No. Of Protons…

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Q: 7. A fictitious element which we will call dearbornium (Db) is made up of two isotopes. A sample of…

A: Given that : For the element dearbornium (Db) in a sample : Number of atoms of 292Db = 2233  Number…

Q: Q/Choose between parentheses 1-if the density of an element 6 mg/ml with volume 1.8 L, its mass will…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Five calcite, CaCO, (MM 100.085 g/mol), samples of equal mass have a total mass of 11.1 +0.1 g. What…

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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.