Electron Configuration and Indium Properties

This video tutorial explains how to write the electron configuration for indium (I), which has an atomic number of 49. It covers two methods: using the diagonal rule and the periodic table. The video provides a detailed step-by-step guide to constructing the electron configuration, including the abbreviated form using Krypton. It also discusses the electron configuration for the indium ion (In3+), explaining how it loses electrons from the S and P orbitals. The tutorial is presented by Dr. B, who provides clear explanations and examples.

What is the atomic number of indium, and how does it relate to its electron count?

• 49, which equals the number of electrons in a neutral atom

• 50, which equals the number of electrons in a neutral atom

• 47, which equals the number of electrons in a neutral atom

• 48, which equals the number of electrons in a neutral atom

What is the significance of the atomic number in determining electron configuration?

• It shows the number of valence electrons

• It equals the number of protons and electrons in a neutral atom

• It indicates the number of neutrons

• It determines the element's position in the periodic table

Which method is NOT mentioned for determining electron configuration?

• Quantum mechanical model

• Using a chart with arrows

• Periodic table blocks

• Diagonal rule

What is the maximum number of electrons that the 'P' block can hold?

• 2

• 14

• 6

• 10

How many electrons are used in the electron configuration of indium before reaching the 5p orbital?

• 47

• 48

• 49

• 50

Which noble gas is used to abbreviate the electron configuration of indium?

• Xenon

• Krypton

• Neon

• Argon

In the abbreviated electron configuration, which orbital is sometimes placed after 4d10?

• 5s

• 3d

• 5p

• 4p

How many electrons does indium lose to form the In3+ ion?

• 4

• 3

• 2

• 1

From which orbitals does indium lose electrons when forming the In3+ ion?

• S and P orbitals

• D and F orbitals

• P and D orbitals

• S and D orbitals

What is the electron configuration of the In3+ ion in its abbreviated form?

• [Kr] 4d10 5p1

• [Kr] 4d10

• [Kr] 5p1

• [Kr] 5s2 4d10