The role of the Aufbau principle, in connection with the periodic law in the development of the periodic table, is to be explained. Concept introduction: Aufbau principle states that the electrons are filled in various orbitals in the increasing order of their energies. It is also called as the building up principle. The orbitals are filled in the increasing energy order as: 1 s < 2 s < 2 p < 3 s < 3 p < 4 s < 3 d < 4 p According to the periodic law, when the various elements are arranged in the increasing order of their atomic numbers , there is a systematic repetition of physical and chemical properties. The elements having similar electronic configuration are placed together in various groups, therefore showing repetition of properties among them.

Question

Want to see the full answer?

Answer 1

Question

Chapter 8, Problem 8.17P

Interpretation Introduction

Interpretation:

The role of the Aufbau principle, in connection with the periodic law in the development of the periodic table, is to be explained.

Concept introduction:

Aufbau principle states that the electrons are filled in various orbitals in the increasing order of their energies. It is also called as the building up principle.

The orbitals are filled in the increasing energy order as:

1s<2s<2p<3s<3p<4s<3d<4p

According to the periodic law, when the various elements are arranged in the increasing order of their atomic numbers, there is a systematic repetition of physical and chemical properties. The elements having similar electronic configuration are placed together in various groups, therefore showing repetition of properties among them.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Write structural formulas for the major products by doing addition reactions 1. You must add H2 as Pt is catalyst it does not take part in reactions only speed up the process H₂ CH2=CH-CH3 Pt 2. Add HCI break it into H and Cl CH3 HCI 3. Add Br2 only CC14 is catalyst CH3-CH=CH2 B12 CCl4 4. Add water to this and draw major product, H2SO4 is catalyst you have add water H20 in both the reaction below H₂SO4 CH3-CH=CH2 CH3 H2SO4/H₂O CH3-C=CH2 reflux ?

Plan the synthesis of the following compound using the starting material provided and any other reagents needed as long as carbon based reagents have 3 carbons or less. Either the retrosynthesis or the forward synthesis (mechanisms are not required but will be graded if provided) will be accepted if all necessary reagents and intermediates are shown (solvents and temperature requirements are not needed unless specifically involved in the reaction, i.e. DMSO in the Swern oxidation or heat in the KMnO4 oxidation). H H

Hint These are benzene substitution reactions. ALCI3 and UV light are catalyst no part in reactions and triangle A means heating. A. Add ethyl for Et in benzene ring alkylation reaction EtCl = CH3CH2CL 1) EtC1 / AlCl3 / A ? B: Add Br to benzene ring ( substitution) 2) Br₂ / uv light ? C Add (CH3)2 CHCH2 in benzene ring ( substitution) (CH3)2CHCH,C1 / AICI, ?