Which of the following statements is true concerning the electron configuration [Kr]5p2? This configuration cannot be...

Which of the following statements is true concerning the electron configuration [Kr]5p2?

This configuration cannot be the ground-state electron configuration for a Sr atom because it violates the Heisenberg uncertainty principle.

This configuration cannot be the ground-state electron configuration for a Sr atom because it violates Hund's rule.

This configuration cannot be the ground-state electron configuration for a Sr atom because it violates the Pauli exclusion principle.

This configuration cannot be the ground-state electron configuration for a Sr atom because it violates the Aufbau principle.

This configuration is the ground-state electron configuration for a Sr atom.

Solutions

Expert Solution

This configuration cannot be the ground-state electron configuration for a Sr atom because it violates the Aufbau principle. The above statement is correct . We know afbau principle states that in the ground state of an atom or an ion atoms fill atomic orbital of lowest free energy as they are more stable in nature thus configuration of an Sr atom is 5s2. S2 has less energy than p2 according to n+l rule.

queen_honey_blossom answered 2 years ago

Next > < Previous

Related Solutions

Which of the following statements is true concerning the electron configuration [Ar]4p2? A. This configuration is...

Which of the following statements is true concerning the electron configuration [Ar]4p2? A. This configuration is the ground-state electron configuration for a Ca atom. B. This configuration cannot be the ground-state electron configuration for a Ca atom because it violates Hund's rule. C. This configuration cannot be the ground-state electron configuration for a Ca atom because it violates the Aufbau principle. D. This configuration cannot be the ground-state electron configuration for a Ca atom because it violates the Pauli exclusion...

An element has an electron configuration of [Ne]3s23p6. Which of the following is true? The element...

An element has an electron configuration of [Ne]3s23p6. Which of the following is true? The element is a noble gas. It has 8 valence electrons. The element is Kr. The element is chemically inert.

Which one of the following has the electron configuration of neon as its core electron configuration?...

Which one of the following has the electron configuration of neon as its core electron configuration? A. S B. K C. Ca D. Se E. None of these

Which of the following statements concerning depreciation is true? a. &nbs

Which of the following statements concerning depreciation is true? a. Depreciation expense accounts for the loss of value of inventory. b. There is no relationship between depreciation expense on the income statement and accumulated depreciation on the balance sheet. c. Net property and equipment is equal to gross property and equipment minus accumulated depreciation. d. Accumulated depreciation appears on the balance sheet under the category “Other Assets.” e. For accounting purposes, depreciation is calculated by...

Which one of the following statements concerning the electron in the ground state in a hydrogen...

Which one of the following statements concerning the electron in the ground state in a hydrogen atom is true within the quantum mechanical model of the atom? The ground state electron has zero binding energy. The ground state electron has zero ionization energy. The ground state electron has zero kinetic energy. The ground state electron has zero orbital angular momentum. The ground state electron has zero spin angular momentum.

Consider the general valence electron configuration of ns2np5 and the following statements:

Consider the general valence electron configuration of ns2np5 and the following statements: (i) Elements with this electron configuration are expected to form -1 anions. (ii) Elements with this electron configuration are expected to have large positive electron affinities. (iii) Elements with this electron configuration are nonmetals. (iv) Elements with this electron configuration form acidic oxides.

Based on the electron configuration and number of unpaired electrons, which are diamagnetic? Electron configuration of...

Based on the electron configuration and number of unpaired electrons, which are diamagnetic? Electron configuration of Cu2+ is [Ar]3d(8)4s(2) and no. of unpaired electron is 2 Electron configuration of Mo4+ is [Kr]4d25s0 and no. of unpaired electron is 2 Electron configuration of Ce is [Xe] 4f1 5d1 6s2 and no. of unpaired electron is 2 Electron configuration of Sn is [Kr] 4d10 5s2 5p2 and no. of unpaired electron is 2 Electron configuration of V5+ is 1s2 2s2 2p6 3s2...

Decide which of the following statements are true and which are false, concerning the kinetic molecular...

Decide which of the following statements are true and which are false, concerning the kinetic molecular theory. 1. The particles are assumed to exert no forces on each other; they are assumed neither to attract nor to repel each other. 2. The molecules in a real gas have finite volumes and do exert forces on each other, thus real gases do not conform to some of the assumptions of an ideal gas as stated by the kinetic molecular theory. 3....

An element has the following electronic configuration: [Kr]4d105s25p4 Answer the following:

CHEMISTRY - TOPIC: Electronic ConfigurationAn element has the following electronic configuration: [Kr]4d105s25p4 Answer the following:(i) What period does it belong to?(ii) What is its group number? (Use group numbers from 1 to 18)(iii) What kind of element is it? (Main group metal, transition metal, metalloid, nonmetal?)(iv) How many unpaired electrons are there in an atom of this element?

Which of the following statements is TRUE concerning the CMA? I. To earn the CMA, an...

Which of the following statements is TRUE concerning the CMA? I. To earn the CMA, an examination must be passed. II. Experience in the accounting field is not necessary to earn the CMA. III. Compliance with the Institute of Management Accountants' Statement of Ethical Professional Practice is not necessary to earn the CMA. Select one: a. II only b. I only c. Both II and III above. d. III only

Subjects