The space in which electrons cannot exist between orbitals is called _____. a. N

Question

The space in which electrons cannot exist between orbitals is called _____. a. Norbitals b. Nodes c. A vacuum d. None of the above The Heisenberg uncertainty principle states that the more we know about the velocity of an electron, the less we know about its _____. a. Charge b. Speed c. Position d. Flavor What is the energy of a photon emitted when an electron falls from n = 4 to n = 1? Delta E = -hcR_H (1/n^2_final - 1/n^2_init); h = 6.626 times 10^-34 J middot s; c = 3.0 times 10^8 m/s; R_H = 1.097 times 10^7 1/m What is the correct electron configuration for Ag? a. [Kr]4s^1 3d^10 b. [Ar]5s^1 4d^10 c. [Ar]4s^2 3d^9 d. [Kr]5s^2 4d^9 e. [Kr]5s^1 4d^10 Which atom or ion would be isoelectronic with Br^+7 (yes plus seven for bromine)? a. [Ar] b. Cu^+ c. Zn^+2 d. Cl^- e. None of the above Select the correct electronic configuration for Ti^+2. a. [Ar] b. [Kr] c. [Ar]4s^2 d. [Ar]3d^2 e. [Ar]4s^2 3d^2 In the following pairs, select the one that is largest. a. K or Kr b. F or F^- c. Ne or Xe d. Ti^+4 or P^-3 e. Pb or Pb^++ f. IE_1:S or IE_1:Ar g. IE_3: Ga or IE_3: Zn h. IE_2: Sb or IE_4: Sb i. IE_1:F or IE_1:I j. EA:Li or EA:Be (EA is electron affinity and select the one that releases more energy) k. EA: Na or EA: Cl (EA is electron affinity and select the one that releases more energy) How many valence electrons do the following have? a. Iodine _____ I b. Xenon _____ Xe c. Copper _____ Cu d. Indium _____ In

Explanation / Answer

1...option ( b ) called nodes

2...option ( c ). Called position and velocity never same at same time so if one high a other less same time.

3.. Acc to formula put value as given

After calculated result (- 20.42*10-19)

4.. Option (e) it takes stability with full d 10 configuration.

5..option (e) none of the above because in that cause bromine (35) after +7 oxidation now change (28) ,and no one configuration give 28 electronic. Ar(18),cl(17),cu+and Zn+2(28) both have its same accord be but both options not available so e option right.

6..option (d) because it will oxidized with outer shell 4s (2) and remain [Ar]3d(2).

7..selected largest only

A Kr

B F-

C xe

D P-3

E pb

F IE1: Ar

G IE3:Zn

H IE4: Sb

I IE1:F

J EA:Li

K EA:Cl

8..a. iodine = 1

b. Xenon = 0

C. Copper = 2

D. Indium =2

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