
Interpretation:
The effective nuclear charge of 4-p electrons in gallium is 6.22 irrespective of the 18 additional electrons with it and the deviation should be explained.
Concept Introduction:
Periodic Table: The available chemical elements are arranged considering their
In periodic table the horizontal rows are called periods and the vertical column are called group.
In periodic table the horizontal rows are called periods and the vertical column are called group. There are seven periods and 18 groups present in the table and some of those groups are given special name as follows,
Atomic Number: Atomic number of the element is equal to the number of protons present in the nucleus of the element which is denoted by symbol Z. The superscript presents on the left side of the
Atomic radius:
Atomic radius is the distance between the atomic nucleus and outermost electron of an atom. From the atomic radius, the size of atoms can be visualized. But there is no specific distance from nucleus to electron due to electron cloud around the atom does not have well-defined boundary.
The atomic size follow the regular trend that it gets decreases as we move from left to right of the table and gets increases as we go from top to bottom of the table.
Shielding effect: The outermost electrons present in the element gets shielded or screened from the nuclear charge by electron present near to the nucleus that is the electrons that surrounds the nucleus.
Effective nuclear charge: It is the charge experienced by the valence electrons from the nucleus.
To determine: The reason for less effective nuclear charge for the gallium atom irrespective of electrons present in it.

Want to see the full answer?
Check out a sample textbook solution
Chapter 4 Solutions
Chemistry: Atoms First
- Draw the mechanism for the formation of diol by starting with one pen and all in... basic conditions then acidic conditions then draw the mechanism for the formation of a carboxylic acid from your product.arrow_forwardDraw the mechanism for the oxidation of 3-bromo-cyclohexan-1-ol.arrow_forwardConvert the following Fischer projection to Haworth projections. show work and show the arrows please.arrow_forward
- Draw the mechanism for the substitution reaction converting an alcohol into an alkyl halide. If chirality is important to the reaction include it.arrow_forwardWrite, in words three different reactions we can use to make an alcohol.arrow_forwardDraw the reduction mechanism for the reduction of the aldehyde.arrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning





