Check all the boxes that are true. (Select all that apply.) O Valence electrons are the electrons in the outermost energy level. In going from the 2s¹ state to the 1s¹ state, a hydrogen atom would emit a photon of light. An orbital is the same as a Bohr orbit. The lithium 1s orbital is larger than the hydrogen is orbital. The third energy level has three sublevels - the s, p, and d sublevels.

Check all the boxes that are true. (Select all that apply.) O Valence electrons are the electrons in the outermost energy level. In going from the 2s¹ state to the 1s¹ state, a hydrogen atom would emit a photon of light. An orbital is the same as a Bohr orbit. The lithium 1s orbital is larger than the hydrogen is orbital. The third energy level has three sublevels - the s, p, and d sublevels.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Part A Use the orbital-filling diagram to show the electron configuration of phosphorus, P. Be sure to label the subshells in order of energy, with the lowest-energy subshell at the bottom and the highest-energy subshell at the top. Drag the appropriate labels to their respective targets. Not all targets will be filled. • View Available Hint(s) Reset Help | 1 G2 G1 1s G2 G1 G1 G1 2s 2p G2 G1 3s G2 G1 G1 G1 Зр G2 G1 3d G2 G1 4s 4p 1L
Which one of the statements about electrons and atoms is now considered INCORRECT? Select one: a. Electrons are best described as standing waves oscillating in the space around the nucleus. b. Electrons have well-defined mass and charge, but their exact position is uncertain. c. Electrons circle the nucleus in elliptical orbits determined by the atom’s nuclear charge. d. In each energy level above n=1, there are multiple regions of space an electron can occupy. e. Two electrons can be paired in the same orbital as long as they have opposite spins.
This is the probability wave of an electron. orbit orbital energy level sublevel O O
Use the information below to answer the following questions. Use 1s, 2p, 3d, etc. for your answers. What type of orbital is designated n = 2, l = 1, ml = 0? ______ What type of orbital is designated n = 4, l = 3, ml = -2? ______
Consider the molecule BF3. neview Constants renodicable
How can an electron get from one lobe of a p orbital to the other without going through the point of zero electron density between them?
3. The Bohr model predicted various properties of the hydrogen atom. Which of the following was NOT among them? a) the electron orbited 52.9 pm from the nucleus b) only certain energy states were allowable for the electron c) emissions of energy were the result of electrons moving from higher to lower energies d) light was carried by particles called photons e) the various energy levels were referred to as shells. 4. Which list below is an allowable set of quantum numbers for an electron? mi ms a 1 1 +1/2 b 2 -1 -1 -1/2 3 -2 +1/2 d 3 2 -2 -1/2 4 4 -3 +1/2 5. An atomic orbital is the circular or elliptical path the electron travels about a nucleus a point of zero electron density a region in an atom in which there is a high probability of finding an electron the distance from the nucleus where an electron is always found an electron orbit with a radius equal to the Bohr radius of the atom а. b. C. d. е.
Here is a sketch of the radial probability distribution of three orbitals: probability 0.0020 0.0015- 0.0010- 0.0005 ALA 500 0 1000 1500 2500 distance from nucleus (pm) 2000 Use this sketch to answer the following questions. What is the most likely distance from the nucleus for an electron in orbital B? Note: your answer must be within 50 pm of the exact answer to be graded correct. List the orbitals in order of increasing energy: Suppose all three orbitals were inner orbitals of an atom. In which orbital would an electron be most effective at screening the charge of the nucleus from the outer electrons? 0 19900 3000 pm (choose one) X
The Bohr model does not account for atoms that contain more than one electron. What do we have to use for atoms that contain more than one electron?what are the four symbols used to describe an electron in an atom?which one is used to describe the shape of an electron’s orbital, and what is it called? which one is used to describe the orientation of the orbital in space, and what is it called?
PART C-RULES OF ELECTRON CONFIGURATIONS AND ORBITAL NOTATIONS Which of the following "rules" is being violated in each electron configuration below? Explain your answer for each. Choices: Hund's Rule, Pauli Exclusion Principle, Aufbau Principle (Hint: these rules are on your Quantum Number notes as well as in your book) Rule and explanation: 12 11 11 îl__ 1s 2s 2p Rule and explanation: 1s 2s 2p 3s 3p Rule and explanation: 1s 2s 2p 3s 3p 15 1s 2s 2p 3s 3p 3d Rule and explanation:
The 8s sublevel is placed after the 7p sublevel when electron configurations are predicted. What is the reason for this? * A - The 7p sublevel has a smaller n value than the 8s sublevel. B- The 8s sublevel has a larger n + ℓ value than the 7s sublevel. C- These orbitals have the same n + ℓ value and the 7p sublevel has the smaller n value. D - The 7p sublevel can house more orbitals than the 8s sublevel. E- None of the options explains the predicted order of these orbitals.
Assign a set of four quantum numbers to the outermost three electrons (last three in) in Scandium .