Consider a sample that consists of three green spheres and one blue sphere. The green mass is 3.00 g, and the blue mass is 1.00g.   Calculate the fractional abundance of each spear in the sample Use the fractional abundance to calculate the average mass of the spheres in this sample How are the ideas developed in this Concept Exploration related to the atomic weights of the elements?

Q: A fictional element has two isotopes and an atomic mass of 76.34 amu. If the first isotope (Isotope…

A: Average atomic mass = 76.34 amu  First isotope = 20.21 amu  Second isotope = 80.76 amu  We have to…

Q: An element has the following natural abundances and isotopic masses: 2297% abundance with 27.977…

A: Average atomic mass of an element is the sum of the masses of its isotopes each multiplied by its…

Q: Average atomic masses listed by IUPAC are based on a study of experimental results. Bromine has two…

A: Average atomic mass- Naturally occurring element exists as mixture isotopes. Isotopes are with…

Q: A sample of element X has two naturally occurring isotopes. The isotope X-45 makes up 35.8% of the…

A: Isotopes are species having same atomic number but different mass number.  Given: The percentage of…

Q: a given compund always contains the same relative masses of its constituent elements. how is this…

A: A pure substance or compound is composed of two or more type of matter in definite proportion. For…

Q: Naturally occurring chlorine (Cl) consists of two isotopes. One of the isotopes has a mass of 34.969…

A: Isotopes have same atomic number but different atomic mass or mass number. Atomic number is equal to…

Q: (b) A certain element has two naturally occurring isotopes. The mass of one of the isotopes is…

A: Given, Mass of One Isotope = 106.905 amu Mass of second isotope = 108.883 amu  % isotope of one…

Q: Naturally occurring copper consists of 63Cu (mass 62.9296 amu) and 65Cu (mass 64.9278 amu), with an…

A:

Q: Bromine has two naturally occurring isotopes, Br-79 and Br-81. Given that on the planet Saturn the…

A: To determine which of the isotope is the most abundant on Saturn.

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

A:

Q: The atomic weight of Ga is 69.72 amu. There are only two naturally occurring isotopes of gallium: 69…

A: Given atomic weight of Ga is 69.72 amu

Q: In a sample of gallium there is 60.2% of gallium-69 (68.9 amu) atoms and 39.8% of gallium-71 (70.9…

A:

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: Potassium has 2 stable isotopes, 39K and 41K with atomic mass of 38.9637 amu and 40.9618 amu. If the…

A: Given: The average mass of potassium = 39.10 u The atomic mass of 39K = 38.9637 u The atomic mass…

Q: Bromine has two naturally occurring isotopes (Br-79 and Br-81) and has an atomic mass of 79.904 amu.…

A: The given data contains, Atomic mass of Br = 79.904 amu. mass of isotope 81Br = 80.9163…

Q: Sodium fluoride is a compound with both sodium and fluorine ions. What do you think the ratio of…

A: Sodium fluoride is a compound which is made up of sodium and fluorine ions.

Q: 2. Compare the "Abundance in Nature" for Carbon-12 and Carbon-13. Using the masses of the two…

A: Compare abundance of in Nature for carbon-12 and Carbon-13 Using the average  mass of two isotopes…

Q: Back on planet Earth, elements have different isotopic distributions. The atom Chlorine ( Cl ) has…

A:

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: Imagine that you were working in the lab at Amgen (a biotech compan Thousand Oaks) and you discover…

A: Isotopes of elements contains same number of protons but different number of neutrons.

Q: Gallium is a metal which forms compounds with a wide variety of uses. Some of the applications of…

A: Given: There are two naturally occurring isotopes of Ga. Isotopic mass of 71Ga = 70.9247050 amu. And…

Q: Tony stark is trying to make new element, and smashes together an atom of helium-4 and an atom of…

A: When an atom is smashed into another atom, the reaction is termed a nuclear fusion reaction. Such…

Q: ne element carbon has two naturally occurring isotopes. The isotopic masses and abundances of these…

A:

Q: Boron has two possible isotopes. Based on the average atomic mass on the Periodic Table (10.81 amu),…

A: Boron is an inorganic element with atomic no. 5. It exists in two different isotopes, .e. Boron-10…

Q: A particular element has 2 stable isotopes. If the first isotope has a mass of 14.754 amu and an…

A: Given that: Element has two stable isotope Mass of first isotope(m1) = 14.754amu Abundance of first…

Q: The most abundant isotope of Hydrogen has a mass of 1 amu.  Therefore, the average atomic mass on…

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: a. 0 35. Rubidium has two naturally occurring isotopes, Rb-85 (relative mass 84.9118 amu) with %…

A:

Q: Average atomic masses listed by IUPAC are based on a study of experimental results. Bromine has two…

A: Given The atomic mass for given two isotope are 78.9183 amu and 80.9163 amu. The given values of…

Q: 25.  The average atomic masses of some elements may vary, depending upon the sources of their ores.…

A: Given,Actual mass of naturally occurring boron 10B, 10.0129 amu and 11B, 11.00931 amu.The actual…

Q: The element carbon (C) has two common isotopes. 98.89% of carbon atoms have 6 neutrons and 6…

A: Given: percent abundance of isotope 1 = 98.89% percent abundance of isotope 2 = 1.11% for isotope 1…

Q: Please answer question a & b both.

A: Average atomic mass can be determined by the equation given below:

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…

A:

Q: Gallium is a metal which forms compounds with a wide variety of uses. Some of the applications of…

A:

Q: Copper has two naturally occurring isotopes, ⁶³Cu (isotopicmass 62.9396 amu) and ⁶⁵Cu (isotopic mass…

A: Given, Mass of 63Cu (isotope I) = 62.9396 amu Mass of 65Cu (isotope II) = 64.9278 amu Atomic mass of…

Q: Question 1 Complete the following analogy: Mikhail Lomonosov: law of conservation of mass as John…

A: Mikhail Lomonosov was the scientist who came up with the ideas about the law pf conservation of mass…

Q: Chemists generally use the term atomic weight rather than average atomic mass. We state in the text…

A: 1. Atomic mass indicates mass of an atom. Single atom has set of protons , neutrons and electrons.…

Q: An element has two naturally occurring isotopes. Isotope 1 has a mass of 120.9038 amu and a relative…

A: Isotopes are atoms of same elements which have same atomic number but different mass number. There…

Q: Question 30 of 39 Antimony has two naturally occuring isotopes, 12 Sb and 123sb. 12' Sb has an…

A: The question is based on the concept of isotopes. We have to calculate elemental abundance of each…

Q: An element has two naturally occuring isotopes. Isotpe 1 has a mass of 120.9038 amu and a relative…

A: Given :  Isotope 1 has a mass of 120.9038 amu and a relative abundance of 57.4% and isotope 2 has a…

Q: Chlorine has two naturally occurring isotopes, ³⁵Cl (isotopicmass 34.9689 amu) and ³⁷Cl (isotopic…

A: Percent abundance tells about the abundance of each isotope in the atmosphere.

Q: There are four isotopes of strontium. They have mass number of 84, 86,87 and 33. The atomic mass of…

A: NOTE : Among the given mass numbers of 4 isotopes, the mass number of 4th isotope is written…

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

A:

Q: An unmanned space shuttle mission brings samples back to Earth from Mars.  Working with samples from…

A:

Q: Question attached

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

Q: 4) Chromium has four isotopes. Chromium-50 (mass of 49.946 amu and 4.35% abundance), chromium-52…

A: Given,  The chromium four isotopes are Chromium-50, (mass= 49.946 amu, % of abundance = 4.35% ),…

Q: Boron has two naturally occurring isotopes, boron-10 with a mass of 10.0129 amu and boron-11 with a…

A:

Q: True or False...and why? a.) If you change number of protons, you have isotopes of an element b.)…

A: Given: a.) If you change number of protons, you have isotopes of an element b.) If you change number…

Q: Calculated the weighted average of a substance from space. It has an abundance of 30.0% and 70.0%…

A: The average weight of a substance can be calculated by adding the product of mass of each of its…

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.