Answered: 7.20 Without referring to a periodic…

7.20 Without referring to a periodic table, write the electronconfiguration of elements with the following atomicnumbers: (a) 9, (b) 20, (c) 26, (d) 33.

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter8: The Periodic Table: Structure And Trends

Section: Chapter Questions

Problem 8.11QE

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Concept explainers

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.

Question

7.20 Without referring to a periodic table, write the electron
configuration of elements with the following atomic
numbers: (a) 9, (b) 20, (c) 26, (d) 33.

Definition Definition Number of protons in the nucleus of an atom. It uniquely identifies an element, as the number of protons determines the element's properties. The periodic table of elements is arranged based on increasing atomic numbers, allowing scientists to easily locate and study elements.

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