4. Chemists can identify the composition of some unknown salts by conducting a flame test. When potassium salts are heated in a flame, a purple color is observed. This is due to the movement of electrons between energy levels. What is the electron configuration of a potassium atom at ground state? (A) 1s 2s 2p 3s?3p°4d! (B) 1s 2s 2p 3s²3p°3d (C) 1s2s 2d 3s23d 4s (D) 1s 2s 2p 3s23p$4s

4. Chemists can identify the composition of some unknown salts by conducting a flame test. When potassium salts are heated in a flame, a purple color is observed. This is due to the movement of electrons between energy levels. What is the electron configuration of a potassium atom at ground state? (A) 1s 2s 2p 3s?3p°4d! (B) 1s 2s 2p 3s²3p°3d (C) 1s2s 2d 3s23d 4s (D) 1s 2s 2p 3s23p$4s

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...

See similar textbooks

Similar questions

Calculate the energy changes when the electron transitions from the n=1 to the n=4 state for the following ions Part (a) Singly ionized helium, He+. Part (b) Doubly ionized lithium, Li++. Part (c) Triply ionized beryllium, Be+++.
Write the electron configuration for the ground state of Hg2+ (mercury 2+). Use the noble gas shortcut. Since Canvas doesn't support superscripts and the like, type in the electron configuration with a space between each sublevel, and without special formatting. For example, [He]2s2p? would be typed in the answer box as "[He] 2s2 2p2".
4. Which of the following subshell has five degenerate orbitals? (a) 2s (b) 3d (c) 4f (d) 5p 5. What is the maximum number of electrons that can occupy the 2p subshell? (a) 2 (b) 4 (c) 6 (d) 10 6. What is the maximum number of electrons that can go into the second shell (n = 2)? %3D (a) 2 (b) 8 (c) 10 (d) 18
15. Identify the element whose photoelectron spectrum is shown below. Relative number of electrons 400 (A) O (B) Ca (C) Ti (D) Ge ^^ 37 (0) 200 30 Ionization energy (MJ/mol) (note: not drawn to scale)
How many unpaired electrons are present in the ground state of an atom from each of the following groups? (a) 3A(13)(b) 4A(14)(c) 7A(17)(d) 5A(15)
3. A student was asked to write the electron configuration for a number of elements on an exam. Here is a sample of some of their answers: a) Ne s2 b) 1s²25³ c) [Kr] 4s1 Select any 2 of the answers above, and explain what is wrong. What element do you think they were describing? Write the correct electron configuration for that element.
Use an orbital diagram to describe the electron configuration of the valence shell of each of the following atoms. (Let n stand for the highest occupied principal quantum level, and m for the principal quantum level right below it. Complete each energy level from left to right. Enter for an unoccupied orbital, 1 for a singly occupied orbital, and 14 for a doubly occupied orbital.) (a) I (b) Cl (c) Rb (d) Ni (e) Ag
Identify the atom or ion corresponding to each of the following descriptions. (a) An atom with ground-state electron configuration [Xe]4f45d%6s? Atom symbol (b) An ion with charge +4 and ground-state electron configuration [Ar]3d³ Ion symbol = (c) An ion with charge -3 and ground-state electron configuration [He]2s²2p Ion symbol