Drawing A Drawing B b. Imagine that the atom in Drawing B had been removed by physical separation from one of the substances in Model 1. What substances could have been the source of the atom in Drawing B?

Q: Assuming that the shape of atoms is spherical, what is the diameter (in angstroms) of an atom that…

A: A multiple choice question based on atomic structure, which is to be accomplished.

Q: a. The atom can be broken down into smaller parts. What are the smaller parts? b. How are atoms of…

A: Since the question being asked has more than 3 subparts, we’ll answer the first 3. Please repost the…

Q: The U.S. Environmental Protection Agency (EPA) sets limits on healthful levels of air pollutants.…

A: The number of lead atoms can be calculated as follows:

Q: B. Indicate which of the following statements is TRUE or FALSE. If your answer is FALSE kindly…

A: a. An element’s atomic number is equal to the number of protons in the nuclei of any of its atoms.…

Q: Cound the atomic masses to the nearest whole number. Name of the Atomic Atomic Atomic element symbol…

A: Atomic number is the number of protons in the atom and atomic mass is the sum of number of neutrons…

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

A: The atomic mass of N relative to H in a sample of of ammonia contains 7.933 g N and 1.712 g H, it is…

Q: Which of the statements about the discovery of electrons is FALSE?     Because atoms are neutral,…

A: Answer : 4th option

Q: Which of the following statements is the best description of a fundamental difference between the…

A: The description of fundamental difference between the atomic models of Thomson and Rutherford is:

Q: we determine the average atom + mass of Cl-37 75.78 ) + (36.966 amu 24.22 100 100

A: Average atomic mass =    = M1X1+M2X2/100  M1 and M2 are atomic masses and X1 & X2 are prevent…

Q: The total charge on an oil drop was found to be 3.84 x 10-18 coulombs. What is the total number of…

A: The Milliken's Oil Drop Experiment was carried by Robert A. Millikan and Harvey Fletcher to…

Q: How has the understanding of the structure of the atom changed over time? Briefly describe the…

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Q: Suppose the diameter of a type of atom is 2.22 x 10-7 mm. A coin has diameter 1.20 cm. Suppose the…

A: If we divide the diameter of a coin by the diameter of an atom we will get the no. of atoms.  Given…

Q: g0. Which of the following is NOT true of the Sc* ion? a) It has the same electron configuration as…

A: We know that, due to positive charge on atom, number of electron decreases. So,

Q: Which of the following is true?    a) There are only protons in the nucleus of the atom.  B) It…

A: Which of the following statement is true ?

Q: Sketch an atom (not to scale) of boron-12, using p for protons, n for neutrons, and e for electrons.…

A: This problem is based on atomic structure chapter . Here we will be discussing about the radioactive…

Q: ) 107.868 amu is the average atomic mass for silver. The Ag-109 isotope (108.905 amu) is 48.16% of…

A:

Q: In the following images, the white spheres represent hydrogen atoms and the red spheres represent…

A: An element contains only one form of the atoms. A compound is formed by combining two or more types…

Q: When trying to identify an unknown element, a scientist determines what other elements the unknown…

A: To identify the unknown elements, its chemical properties should be studied.  Chemical properties…

Q: A certain element X forms a compound with oxygen in which there aer two atoms of X for every three…

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Q: For the atom with Z = 6. a. The atomic symbol is b. The name of this atom is c. This atom is in…

A:

Q: Consider a hypothetical case in which the charge on a proton is twice that of an electron. Using…

A: The atomic number of potassium (K) is 19. The mass number of potassium is 39. The number of protons…

Q: In the Rutherford Gold Foil Experiment, why did Rutherford expect the alpha particles to pass…

A: Based on Thomson's plum pudding model, Rutherford predicted that most of α particles would pass…

Q: Which of the following statements is the best description of a fundamental difference between the…

A: The main difference between the atomic models of Thomson and Rutherford is that Thomson model of…

Q: Which of the following statements must be true for the following equation to apply?…

A: The given equation is an expression for the energy of stationary state of electron which was given…

Q: Hypothetical elements X and Y form a molecule XY2, in which both Y atoms are bonded to atom X (and…

A: X-Y distance in the molecule XY2 will be 186 pm.  Bond length of any molecule is given by the…

Q: description An element in Period 1 and Group 34. A nonmetal in Group 6A A noble gas with a higher…

A:

Q: The imaginary element Beesium (Element symbol: Bs) is a group 1A (1) element. Upon reacting with N,…

A: Write name of imaginary inorganic compound --

Q: Marie Curie was a Polish scientist that specialized in chemistry and physics. She wanted to…

A: Marie Curie  Marie Curie is renowned for discovering radium and polonium, as well as for making a…

Q: Particle Number of Electrons Number of Protons Number of Neutrons A 11 9 11 B 9 9 10 C…

A:

Q: a) The atom consists of a very tiny, thickly dense positively charged nucleus, surrounded by a…

A: Atom is an arrangement of negatively charged sub atomic particles known as electrons.that are…

Q: How does matter contrast with elements, atoms, and isotopes? Explain step by step how matter…

A: The given question asks to explain three differences, first between matter and elements, second…

Q: A hypothetical element X has 3 naturally occurring isotopes: 41.20 % of 21x, with an atomic weight…

A: The information given is A hypothetical element X has 3 naturally occurring isotopes: Atomic weight…

Q: Chlorine has two naturally occuring isotopes, CI-35 (approximately 75%) and CI-37 (approximately…

A: Mass spectrometry is an important tool for the determination of the molecular mass of the compound…

Q: information

A: This question is related to abundance of isotopes.

Q: Match each of the elements on the left to an elemental form on the right. Xe Cu N C(fullerenes) Ge…

A: Given data:Match the following with the correct termsXeIndividual atomsCuMoleculesNMetallic…

Q: A fictitious element X has an average atomic mass of 122.339 u. Element X has two naturally occuring…

A: Isotopes can be defined as the elements having  same atomic number but different mass number due to…

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.