Answered: Atomic Ionic radius (Å) radius (A) 02-…

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter1: Introduction To Chemistry

Section: Chapter Questions

Problem 1.24PAE: 1.24 What is a law of nature? Are all scientific laws examples of laws of nature?

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Question

Identify the true statements concerning the atoms and
ions of the group 6A elements.

(a) The ionic radii are larger than the atomic radii because
the ions have more electrons than their corresponding
atoms.
(b) Atomic radii increase going down the group because of
increasing nuclear charge.
(c) The ionic radii increase going down the group because
of the increase in the principal quantum number of
outermost electrons.
(d) Of these ions, Se^2- is the strongest base in water because
it is largest.

Atomic
Ionic
radius
(Å)
radius
(A)
02-
s2-
Se
Se2-
0.66
1.40
1.05
1.84
1.20
1.98

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