Which of the following types of electrons penetrates most toward the nucleus and therefore has the greatest shielding effect? A) s B) p C) d D)f E) all penetrate equally

Q: A metal with a threshold frequency of 6.71x10^14 s^-1 emits an electron with a velocity of 6.95x10^5…

A: Given information: The threshold frequency of electron is 6.71x1014 s-1 The velocity of electron is…

Q: 8. Identify for an atom of 32s : element name: Z, atomic number = A, mass number = number of…

A:

Q: Which element has 71 neutrons? a) 222Rn b) 146Nd c) 159Sm d) 140Ce e) 121Sn

A: We can find neutrons by subtracting number of protons form mass number.  No.of neutrons=mass…

Q: What wavelength , in m, does an alpha particle have if it is traveling at 15% the speed of light c?…

A: The gap that held between two consecutive points in any wave is stated as "wavelength". The common…

Q: Which of the following characterizes a gamma ray? Choose all that apply. is not deflected by an…

A: • Here is this given problem we have to choose the correct options regarding the properties of gamma…

Q: Which radiation has the higher frequency? the red light on a bar-code reader at a grocery store; the…

A: In electromagnetic radiation spectrum, red light falls in wavelength range of 650nm to 750nm.  Green…

Q: Atomic #= 15 Mass #-31

A: Atomic number is equal to the number of protons.  Number of neutrons = mass no. - atomic no.…

Q: The artificial element 114 (flervium) was created in in Russia in 1998. It has an atomic number of…

A: The flervium element has an atomic number of 114, its electronic configuration will be : Flervium…

Q: 6.5.1 What is the minimum uncertainty in the position of anelectron moving at a speed of 4 × 106 m/s…

A: According to Heisenberg uncertainty principle, it is impossible to measure the position(x) and the…

Q: Develop a relationship (in the form of a single sentence or equation) that can predict the charge…

A:

Q: - many emission lines are possible, considering only the four quan ls above? otons of the highest…

A: A) Total number of emission spectral line  Total lines  = n(n-1)/2   = 4 ×(4-1)/2   = 6

Q: Predict the sublevel that follows 4p

A: Applying aufbau's order of sublevel.

Q: When you double the frequency of electromagnetic radiation, you _________ the energy.

A: Electromagnetic radiation is that energy which travels with speed of light through electric and…

Q: describes how an atom emits color

A: The atoms emit colors.

Q: WHAT IS THE NUCLEAR MASS AND THE NUCLEAR DENSITY OF THORIUM IN PERIODIC TABLE

A: We have to write the Nuclear Mass and Nuclear Density of Thorium in periodic table.

Q: Can angular electron be non-core electrons

A: Auger electrons are basically the electrons which is generated when an electron is removed from a…

Q: Electrons are filled in various sub-shells from lower energy to higher energy.   Select one: True…

A: Following is the conclusion of Aufbau principle.

Q: What wavelength (in meters) of radiation has photons of energy 6.22×10-19 J?

A: Given : Energy of photons = 6.22 X 10-19 J

Q: Without any additional interactions, an excited atom will   a. drop to a lower energy level.   b.…

A: When an atom absorbs a photon energy and gets excited.

Q: How many core electrons are in N-2?

A: Given :- Atomic symbol = N-2  To find :- number of core electrons  Atomic number of N = 7

Q: A. Explain what experimental evidence supports the following statements: Atoms are destructible.…

A: 1. Atoms are destructible. Atoms are the fundamental building blocks of matter.According to Dalton…

Q: In order for a thermonuclear fusion reaction of two deuterons (21 H+) to take place, the deuterons…

A:

Q: Which atom is the biggest?

A: We will find out biggest atom

Q: Calculate the wavelength associated with a neutron having a mass of 1.675 × 10-24 g and kinetic…

A:

Q: Indicate which kind of orbital (s, p or d) each of the following diagrams represents. 8 of

A: Which kind of orbital (s, p or d )  is given = ?

Q: Among the elementary subatomic particles of physics is themuon, which decays within a few…

A: The mathematical expression of de Broglie  relation is: Given, Mass = 1.88 x 10-28 kg v  = 8.85 x…

Q: subatomic particle with a mass of 9.1 x 10−28 g and a charge of −1, and that can be found in an…

A: Given :- mass of particle = 9.1 X 10-28 g Charge of particle = -1 To find:- This particle can be…

Q: What do you mean by Electromagnetic Radiation ?

A: To explain the meaning of the electromagnetic radiation

Q: Photoelectron Spectrum of Neon www.APchemresources2014.weebly.com J. K. Howell A B 1000 800 600 400…

A: Photoelectron spectroscopy (PES) is useful to determine the relative energies of the electrons…

Q: ca page prinis Atomic Structure Who Am I? Bohr's Model 00 (c) 2017 Activities To Teach.com-Updoted…

A: For the identification of atom, calculate the number of protons and number of electrons in the atom…

Q: mass of an atom is found in the electron layers

A: False

Q: The periodic table lists all known elements arranged by atomic number. Atomic number is the nuclear…

A: The value of n and l for the valence electrons for the marked elements in the order of left to right…

Q: 6. As one moves down the Periodic Table, lonization Energy decreases because of: A) Extra energy…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: ew Walue Unit A Review 65 2 Complete the following written-response questions in the spaces…

A: Protons are positively charged and electrons are negatively charged.Neutrons have no charge.

Q: Fill in the chart below: Particle Charge Location Relative Size proton neutron electron

A:

Q: Most of the mass of an atom is found in the electron layers Select one: O True O False

A: We have to find the given statement is true or false. Most of the mass of an atom is found in the…

Q: What wavelength, in femtometers (fm), does an alpha particle have if it is traveling at 22.9% the…

A: λ = hm v  where  λ =  wave length  = ? fm  h = planck's constant = 6.625 x 10-34 J sec = 6.625 x…

Q: Neutrons move round the nucleus of an atom in definite paths called orbits. Select one: O True O…

A:

Q: Write the electron configuration for the following element (short-hand notation is acceptable) 02-

A: Electronic configuration of the element: It is the distribution of electrons in the different…

Q: Complete the following by choosing the correct word. The atomic theory was given by •.c" and e" have…

A: The atomic theory was given by John Dalton.6C12 and 6C13 have different number of Atomic Masses and…

Q: Write the electron configuration for the following element (short-hand notation is acceptable) Pm…

A: Given Pm =Promethium atomic number 61

Q: Label each of the following statements as true or false. Forthose that are false, correct the…

A: (a) Visible light is a form of electromagnetic radiation - True

Q: Element 118 was reportedly synthesized in 1999, but the claim was later retracted. As a consequence…

A: Element 118 name has configuration - Configuration - Rn5f14 6d10 7s2 7p6

Q: 53. Which of the following is true when photoelectric effect occur? A. The maximum speed of the…

A: Photoelectric effect : When a electron is ejected from a metal surface due to incident light whose…

Q: which value of n yields the lowest energy?

A: INTRODUCTION: First calculate the energy in terms of Joules. For n=1 For n=2 For n=3 For n=4…

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.