scanning electron microscope a.Uses glass lenses to focus the image of the sample b.Scans a proble along the surface of the sample c.Measures the electrons that pass through the sample d.Takes a complete picture of the sample all at once e.Measures the scattered electrons from the sample

Q: Choose the largest atom. a. Na b. P c. Kr d. Ca

A: The size of atom depends on its atomic radius. The periodic trend of size is as below : Along the…

Q: The current model of the atom in which essentially all of an Atom’s mass is contained in a very…

A: To find: The current model of the atom in which essentially all of an Atom’s mass is contained in a…

Q: Use the periodic table and determine the shorthand electron configuration of each of the following…

A: To find the short hand electron configuration of the following atoms: Zr Br K

Q: BöhP's model of the structure of the hydrogen atom. More than one selection may be correct.…

A: Correct Options are,  Electrons circle around the nucleus His model was similar to our solar system…

Q: Atomic Structure 4. Write the letter next to the number of units of positive charge that remain if a…

A:

Q: Doing the flame test is important in chemistry because of the following reasons EXCEPT this    a. it…

A: Doing the flame test is important in chemistry because of the following reasons EXCEPT this :

Q: The number of bonds an atom can form depends on a. the number of neutrons in the nucleus  b. the…

A: Correct option is (C).

Q: 12. How many protons, neutrons, and electrons are in the following? a. 1 atom of iodine-127 b. 1…

A: Since we know that  Atomic number = number of proton  Mass number = number of protons + number of…

Q: 1. What specific material(s) is (are) used and what specific properties this (these) material(s)…

A: The objective of the question is to find the specific material used for the given items and its…

Q: 37. Which pair of elements have the same valence electron configuration? a. sodium and argon b.…

A: Dear student ,         since you have posted multiple questions we are allowed to solve only first…

Q: Which of these is a FALSE statement about the structure of the atom? a. An atom with equal numbers…

A: 1. Statement should be written about the Structure of the atom.

Q: Is each of the following statements true or false?a. A proton and an electron have opposite…

A: a. A proton and an electron have opposite charges. The given statement is True. Protons are…

Q: No two electrons in an atom can hav e four quantum numbers" is a statem e Pauli exclusion principle…

A: The electrons in an atom are filled in orbitals according to De-Broglie relation, Bohr's equation,…

Q: Which scientist first discovered electrons? a. Bohr b. Chadwick c. Dalton d. Democritus e.…

A: Here, we have to write the name of the scientist who discovered electrons.

Q: Which of the following is used to describe the electron configuration of an atom?  a.) the sun shell…

A: The electron configuration of an atom is a fundamental concept in chemistry and physics that…

Q: In Rutherford's experiment, most of the positively charged alpha particles escaped from the sheet…

A: Thompson model of atom consisted of positive charge cloud and negative charge inside it. In this…

Q: Rutherford's gold foil experiment contributed to the discovery that: A. Atoms contain electrons B.…

A: The given statements about Rutherford's gold foil experiment are : A. Atoms contain electronsB.…

Q: Which statement is correct? A.Electrons, protons, and neutrons have about the same mass.…

A: This question is base on the masses of electrons ,protons and neutrons.

Q: Use the periodic table and determine the shorthand electron configuration of each of the following…

A: Shorthand electron configuration is the electronic configuration written for the elements by…

Q: C. Makes predictions based on Schrodinger's wave equation. D. All of the above the…

A: 5) wave mechanical model is explained by Schrodinger wave equation  It determines most accurate…

Q: What is the symbol for the lightest alkali metal with three neutrons? Select one: a. H b. Li c. B…

A: Lithium Lithium is an alkali metal with the atomic number = 3 and an atomic mass of 6.941 g/mol.…

Q: 1. Mg is a/an a. anion b. halogen C. cation d. cube e. transition metal

A: According  to our guidelines , we w9ill solve only one question if multiple question posted. please…

Q: Which of the ff is a limitation of the Bohr model of the atom? a. The model only applies to light…

A: Hydrogen is an atom having atomic number 1. Its symbol is 'H'.

Q: Which element would most likely be a shiny solid at room temperature and have a high density? A. Kr…

A: Generally metals are shiny solid at room temperature and have a high density.

Q: Which atom is the biggest?

A: We will find out biggest atom

Q: J.J. Thomson was able to measure the charge to mass ratio of an electron. To do this he had to…

A: Discovery of electron is done by J.J Thomson using gas chamber.

Q: Use the models to answer the following question. Model A Model B Which is the correct model and…

A: Given  Model A and Model B diagram is given  To find : Correct statement = ?

Q: Tô éäch ĝivề Thêir ločâTion, charge and Pelativeė mass. are the 3 subatomic particles? 2. What does…

A: An atom consists of neutrons, protons and electrons.

Q: 25. Which determines the speed of a molecule? * a. Its kinetic energy b. The amount of the molecules…

A: Multiple choice questions : 25-28

Q: Briefly summarize the experiment Rutherford used to develop his model. Use diagrams. Draw a picture…

A: Rutherford directed a beam of alpha particles on a thin foil of gold, and the foil was surrounded by…

Q: What are the elements in the A columns of the periodic table called a.Main group elements b.…

A:

Q: The Periodie Table of the Elements HAHAAAAAAAAAAI HR HHHHHHHHHE THE HHE From their location in the…

A: Since you have posted more than 1 question,we will solve only 1 question for you. If you want other…

Q: show-all-working-explaining-detailly-each-step. Answer should be typewritten using a computer…

A: Option C is Correct Answer.  I.e., electric field in mass spectrometer is to deviate the charges.

Q: As electrons in the atom jump up in energy, photons are emitted. a. True b. False

A: Absorption: During this process an electron absorbs some energy and transferred from lower state to…

Q: associated with the following: a. Bohr model of the the atom. b. Wave-mechanical atomic model.

A: Bohr Atomic model are wave mechanical models are given to define the structure of an atom

Q: Energy absorbed when an electron is added to an isolated atom in the gaseous state „A O Energy…

A: Given that, Energy absorbed when an electron is added to an isolated atom in the gaseous state.

Q: a sample of the element boron with have some atoms with six neutrons and some atoms with 5 neutrons;…

A: Given is a sample of biton atoms, of which some contain 5 neutrons and some contain 6 neutron. We…

Q: D. List down 5 noble gases E. List down eight transition metals F. Aside from the noble gases, list…

A:

Q: 1. According to modern atomic theory, what is the specific location of a neutron within an atom? a.…

A: Given: Sub-atomic particle is neutron.

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.