(a) Which two of the following are isotopes of the same element:3116X, 3115X, 3216X? (b) What is the identity of the elementwhose isotopes you have selected?

Q: 241 Am 2 n +? 95 Express your answer as an isotope.

A: We have the nuclear reaction as: 42He + 24195 Am ----> 210n + ?  We need to determine the element…

Q: Give the number of atoms of the specified element in a formula unit of each of the following…

A: a) The given compound is C6H5COONH4 The number of a hydrogen atom is 9 The molecular mass of the…

Q: Write the isotopic symbols in the form X-A (for example, C- 13) for the iodine isotope with 74…

A: Write the isotope for iodine with 74 neutrons

Q: 2. Which compound (C12H22011 or NH,CI )contains the most total number of atoms?

A:

Q: What is isobars and isotopes?

A: Isobars: 1. Isobars are elements with different atomic numbers and the same mass number. 2. Isobars…

Q: Write the isotopic symbols in the form X-A (for example, C- 13) for the argon isotope with 22…

A: When the two Two has same no of proton but mass no is different then they are called is isotope of…

Q: If the atomic mass of an element is X, what is the mass in grams of 1.027 x 1020 atoms of the…

A: Atomic mass of element (given)=X Number of atoms present =1.027×1020 atom

Q: Why is the atomic weight of carbon reported as 12.011 in the table of elements and the periodic…

A: Mass of carbon is 12 amu

Q: Which of the following are poor conductors of heat and electricity? O Transition elements O Halogens…

A: Elements can be classified into 3 forms, that is metals, non-metals, and metalloids. Metals are the…

Q: In which of these compounds are there twice as many Oxygen atoms as Hydrogen atoms?

A: To find :- The compound having oxygen atoms two times more than the hydrogen atoms.   We can easily…

Q: What is the mass, in grams, of 2.08 × 1024 aluminum (Al) atoms?

A: The question is based on mole concept. We have to determine mass of aluminium present.

Q: Iron exists in nature as a mixture of predominantly three isotopes: 5426Fe (53.94 amu), 562.Fe…

A:

Q: If you have 13.02 x1023 atoms of nitrogen, what would you expect its mass to be?

A: Given, Number of Nitrogen atoms = 13.02 X 1023

Q: Iron exists in nature as a mixture of predominantly three isotopes: 26Fe (53.94 amu), 56 neFe (55.93…

A:

Q: 3.00 x 1023 atoms

A: Mass of Ca = 20.0 g Molar mass(MM) of Ca = 40.08 g Moles of Ca = Mass/MM     = 20.0/40.08   = 0.500…

Q: There are two naturally occurring isotopes of europium, 151Eu (151.0 amu) and 153EU (153.0 amu). If…

A: Given : There are 2 naturally occurring isotopes of europium. Mass of 151Eu = 151.0 amu Mass of…

Q: 2. In a chemical atomic mass determination, the tin content of 3.7692 g of SnCl4 was found to be…

A: In SnCl4 one Sn atom combine with 4 chlorine atom. Given mass of SnCl4 is 3.7692 g and mass of Sn is…

Q: 2. What is the relative abundance of each isotope present in a sample of Tin if the average atomic…

A:

Q: 3. A) Boron, element number 5, exists in only two common stable isotopes. They are B-10 and B-11.…

A: A) Given : There are only 2 naturally isotopes of boron i.e B-10 and B-11. The average atomic mass…

Q: How many moles of aluminum do 6.00*10^24 aluminum atoms represent?

A:

Q: What mass of nickel would contain 5.66 x 1021 atoms?

A:

Q: What is the mass of 6.02 x 1023 atoms of carbon, C?

A: Concept is based on mole concept

Q: What is the mass of 6.02 x 1023 Cu atoms?

A:

Q: An element consists of 4.35% of an isotope with mass 49.946 u, 83.79% of an isotope with mass…

A: Average atomic mass: The average atomic mass of an element is the sum of the masses of its isotopes,…

Q: (a) What is the mass in amu of a carbon-12 atom? (b) Why is the atomic weight of carbon reported as…

A: Carbon is an element having atomic number 6. It belongs to 14th group and 2nd period. The valency of…

Q: What is the mass, in grams, of Vitamin C (C6H8O6) that contains 1.076 grams of carbon?

A: Molar mass of C = 12.01 g/mol mass(C)= 1.076 g number of mol of C, n = mass of C/molar mass of C…

Q: On another planet, the isotopes of titanium have the given natural abundances. Abundance Mass (u)…

A: Formula is  Avg atomic mass = (%abundance×mass)1+(%abundance×mass)2 so do this all there Isotope of…

Q: If there are 8.59 x 1022 molecules of NaCl in a salt shaker, what is the mass of NaCl?

A:

Q: Give the number of atoms of the specified element in aformula unit of each of the following…

A:

Q: Thallium has two stable isotopes, 203TIand 205TI. Knowing that the atomic weight of thallium is…

A:

Q: Iron exists in nature as a mixture of predominantly three isotopes: 54, (53.94 amu), 5® 26FE (55.93…

A:

Q: Deducing Relative Abundance by Semi-Quantitative Reasoning- Without Doing Math How would I go about…

A: More number of neutrons are required for higher atomic number elements to avoid repulsion.

Q: What is the % mass of oxygen in citric acid, C6H807?

A:

Q: How many protons are in 2.08 x 10-21 g of F?

A: Atomic weight of F = 19 Given is Mass of F= 2.08 x 10-21 g Number of moles= given mass/ molar mass…

Q: The natural abundance of 3He is 0.000137%. (a) How manyprotons, neutrons, and electrons are in an…

A: a. The number of protons = 2  The number of electrons = 2 and  The number of neutrons = 3-2 = 1

Q: Calculate the exact masses of the ions C5H8O1 and C6H12 1, both of which have a nominal mass of 84.…

A: The organic compounds can be identified by various characterisation techniques. For example, NMR,…

Q: There are three isotopes of an element, X-28, X-29, and X-30, with relative abundances of 92.2297%,…

A: The mass number of Silicon = 30

Q: There are two naturally occurring isotopes of europium, 151Eu(151.0 amu) and 153Eu(153.0 amu). If…

A: Given information:Two isotopes of europium, 151Eu (151.0 amu) and 153Eu (153.0 amu)Atomic mass of Eu…

Q: One of the heaviest atoms found in nature is 238U. Its relativeatomic mass is 238.0508 on a scale in…

A: Given, 238U relative atomic mass is 238.0508

Q: 2-75. A sample of rutile, an ore of titanium consist- ing principally of TiO,(s), was found to be…

A: The question is based on the concept of quantitative analysis. we have to calculate how much…

Q: 6. What is the mass of 6.20 x 1025 atoms of sulfur?

A: We have 6.2*1025 atoms of sulphur , we have to calculate the mass of given atoms of sulphur.

Q: How many moles would 1.00 x 103 molecules of methane ( 1. CH4) represent?

A: Avogadro number (NA) 1 mole of a substance contains 6.02×1023 molecules 1 mole of O2 contains…

Q: Given that you had 1 mol glucose (C 6H 12O 6), what would the mole ratio of glucose to oxygen be?

A: Balance Chemical equation means number of atoms or ions should be equal in both side (reactant and…

Q: Naturally occurring tungsten metal is composed of three stable isotopes: 182 74W, with a natural…

A:

Q: 1. How many moles of tungsten atoms are there in 4.8 x 1025 atoms of tungsten?

A: Since you have asked multiple question,as per our company guidelines we are supposed to answer the…

Q: What would be the mass, in kilograms, of a block of graphite consisting of 1.55 x 1026 carbon atoms?

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.