Answer Bank Effective nuclear charge decreases from left to right across a period on the periodic table. Across a period, as Zeff increases, atomic size decreases. A 1s electron in a Be atom has a smaller Zeff than a 1s electron in a Li atom.

Answer Bank Effective nuclear charge decreases from left to right across a period on the periodic table. Across a period, as Zeff increases, atomic size decreases. A 1s electron in a Be atom has a smaller Zeff than a 1s electron in a Li atom.

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter6: The Structure Of Atoms

Section: Chapter Questions

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Question

Which statement is true or false?

Answer Bank
Effective nuclear charge decreases from left to right across a period on the periodic table.
Across a period, as Zef increases, atomic size decreases.
A 1s electron in a Be atom has a smaller Zeff than a 1s electron in a Li atom.

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