A mass spectrometer determined a sample of lithium contains 88.00% Li-6.938 and 12.00% Li-6.997. The average atomic mass for the sample is a) 6.9 amu O b) 6.968 amu c) 6.95 u d) 6.945 u

Q: Element X reacts with chlorine to form a compound with the formula of X2Cl3. This compound contains…

A: Relative atomic mass: Cl = 35.5 g/mol

Q: Element/Ion 3115 P3- 6) 9) 12) 15) 5525Mn³+ 1) 16) A 107 207 39 55 2) 10) 13) 17) Z 47 55 3) 7) 11)…

A: we need to fill the given table with missing values

Q: Calculate the average atomic mass of Ga. Naturally occurring Ga is composed of 60.0% 69 Ga, that has…

A:

Q: What if a new element, Tyserium (Ty), was discovered today and was found to (atomic mass = 331amu, %…

A:

Q: Lithium forms compounds which are used in dry cells and storage batteries and in high-temperature…

A: The variants of any element containing dissimilar neutrons number but similar protons number (atomic…

Q: How many atoms are contained in a titanium sphere having a diameter of 4.00 mm? The density of…

A: Given : density of titanium = 4.506 g/cm3  And diameter of sphere = 4.00 mm  Since 1 cm = 10 mm…

Q: mass of this compound. Q4) Lithium , is used in dry cells and storage batteries and in high…

A:

Q: atomic weight

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Q: Calculate the average atomic mass for gallium if 60.00% of its atoms have a mass of 68,926 amu and…

A:

Q: A certain ion X-1 contains 18 electrons and 17 neutrons. Identify the element X. What is the mass…

A: Given information: Number of electrons and neutrons in  X-1 = 18 electrons and 17 neutrons

Q: A 20.0 g sample of an element contains 4.95 x 1023 atoms. Identify the element. a) Cr b) o c) Mg d)…

A: An element is a pure material in chemistry that consists only of atoms with the same number of…

Q: Part II. Calculate the Atomic Mass 1. 0.337% 35 Ar; 0.063% 38A1; 99.60% 4ºA 2. 7.75% 68Ge; 20.52%…

A: 1. Mol %  of  35Ar = 0.337%  Mol % of  38Ar = 0.063%  And mol % of 40Ar = 99.60 %  Mass of 40Ar = 40…

Q: Determine the charge of each ion.(a) oxygen ion with 10 electrons(b) aluminum ion with 10…

A: ANSWER

Q: Find the average atomic mass for Li if 7.5% of Li atoms are Li-6 with a mass of 6.0151223 amu and…

A:

Q: nd the average atomic mass of the element with the following isotopes Percent Isotope Mass Abundance…

A:

Q: Cerium is the most abundant rare earth metal. Pure cerium ignites when scratched by even a soft…

A: The Isotopes given are Ce-136(atomic mass=135.907 amu), Ce-138(atomic mass=137.905 amu),…

Q: The diameter of a U.S. dime is 17.9 mm, and the diameter of a silver atom is 2.88 A° . How many…

A: The diameter of a U.S. dime is 17.9 mm = 0.0179  meter  diameter of a silver atom is 2.88 A°  =…

Q: What is the average atomic mass of titanium? Isotope Abundance Mass (u) 46Tİ 72.600% 45.95263 48Ti…

A: Isotopes are atoms of same atomic number but different mass number.

Q: The element X has two naturally occurring isotopes. The masses (amu) and % abundances of the…

A:

Q: An element has the following natural abundances and isotopic masses: 90.92% abundance with 19.99…

A: Given, Natural abundances (in %) with isotopic masses (in amu )90.92% with 19.99 amu0.26% with 20.99…

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: Find the atomic mass unit of silicon -28,silicon-29,silicon-30 with masses of…

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Q: 27. How many electrons does 207Pb+2 have? a. 80 b. 82 С. 84 d. 125 28. How many electrons does Ga+3…

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

Q: 33. What is the net electrical charge of chlorine (CI) if it has 16 electrons? a. 0. b. +1 с. -1 d.…

A: Atom will be positively charged if it loses electrons (the net electrical charge depends on the…

Q: 16) What's the atomic number of sulfur-34 ? A) 34 B) 18 C) 16 17) In the formula of hydroxylapatite…

A: According to our guidelines we can answer only three subparts

Q: 4. A naturally occurring element X exists in three isotopic forms on the third planet of the Alpha…

A: Formula to calculate atomic mass from natural Abundance is :-  Atomic mass = ∑atomic mass × natural…

Q: 57 58 La Ce Lanthanum 138.90047 Cerlum 140.11 Ptable 90 89 Ac Actinium (227) .com Th Therum 21203M…

A: Atomic mass of Pd is 106.42u and atomic mass of Cd is 112.411u  Ag has atomic mass of 107.86 u…

Q: Calculate the mass and charge of 1. nucleus of atomic N 2. singly ionized Na2+

A:

Q: Element X has two naturally occurring isotopes,  65X(isotopic mass  64.7471 amu, abundance 28.49%)…

A: Given : Element X has 2 naturally isotopes. Mass of isotope 65X = 64.7471 amu Abundance of 65X =…

Q: Calucate the atomic mass: Titanium: Ti-46 (7.9 %), Ti-47 (7.3 %), Ti-48 (73.9 %), Ti-49 (5.5 %),…

A: Given data : Ti-46 = 7.9 % Ti-47 = 7.3 % Ti-48 = 73.9 % Ti-49 = 5.5 % Ti-50 = 5.4 %

Q: Gallium has two naturally occurring isotopes with masses 68.93 amuamu and 70.92 amuamu and has an…

A: Intensity % is proportional to % abundance of each isotope.  Hence in order to correlate %…

Q: Element X has two naturally occurring isotopes, 65X (isotopic mass 65.3520 amu, abundance 58.16%)…

A: The average atomic mass is the sum of the mass of the isotopes multiplied by its fraction or…

Q: Lithium forms compounds which are used in dry cells, storage batteries, and in high-temperature…

A: Given : Atomic mass of Li = 6.9412 amu Isotopic mass of 6Li isotope = 6.015123 amu  And Isotopic…

Q: The average atomic mass of hypothetical element 67X (66.9256 amu) and 71X (70.9247 amu) is 68.10…

A: Average atomic mass of an element can be determined as shown below :Avg. mass=mass of isotope 1×its…

Q: Enter your answer in the provided box. Element X has two naturally occurring isotopes, 6x (isotopic…

A:

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

A:

Q: The radius of a Niobium atom is 143 pm(b) The mass of a single niobium atom is 1.54×10-22 g. Suppose…

A: Given here,the radius of a Niobium atom is = 143 pm1 pm = 1e-12 m1 m = 100 cmSo,Diameter of 1…

Q: A cylindrical piece of pure titanium (Ti, density=4.506 g/cm^3) has diameter d=1.15 cm and length…

A:

Q: Naturally occurring lithium is a mixture of 92.58% Li@7 with a mass of 7.016 amu and 7.42% Li@6 with…

A: Given - Sufficiency  of  Li-7  = 92.58% isotope  with mass =7.016 amu sufficiency  of  Li-6  isotope…

Q: Ammonia is a gas with a characteristic pungent odor. It is sold as a water solution for use in…

A: Mole Moles is a quantity that represents a collection of 6.022×1023 atoms or molecules. The…

Q: Naturally occurring magnesium has the following isotopicabundances:

A: The atomic mass of magnesium has to be calculated. Average atomic mass of the element is calculated…

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: Question attached

A: Isotopes of an element have the same number of protons (atomic number) and a varying number of…

Q: How many atoms are contained in a titanium sphere having a diameter of 12.0 mm? The density of…

A:

Q: element atomic # mass # p+ е- n0 Ne 20 Na 23 28 31 207 125 277 112 17 18 6. 137 81 Rn 224 43 98

A: Filling the table

Q: Copper has two naturally occurring isotopes: 69.17% of Cu-63 (mass 62.93 amu) and 30.83% of Cu-65…

A: Average atomic mass of Cu = [(% abundance of Cu-63 x Mass of Cu-63) +(% abundance of Cu-65 x Mass of…

Q: Question attached

A: Isotopes are variants of a particular chemical element which differ in neutron number, and…

Q: 32. Compléte the table given below. 32. Nuclear Metal, Nonmetal, Symbol Number of Group Period…

A: The periodic table (also known as the periodic table of elements) is organized In such a way that…

Q: Rubidium has two naturally occurring isotopes, rubidium-85 (atomic mass = 84.9118 amu; abundance =…

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

Q: Strontium (Sr, atomic number 38, average atomic mass = 87.62) naturally exists as 4 stable isotopes…

A: Strontium-88 is the most abundant. Hence option C is correct.

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.