(a)
Interpretation:
The reason for the atomic radius of anion to be always larger than that of the atom from which it is derived is to be explained.
Concept Introduction:
Atomic radius is half the distance between two molecules of an atom. Cation is formed by removal of electron/s from an atom and anions are formed by addition of electron/s in an atom. For same atoms, cationic radius is always less than that of the neutral atom and anionic radius is always greater than that of the neutral atom.
(b)
Interpretation:
The reason for the atomic radius of cation to be always smaller than that of the atom from which it is derived is to be explained.
Concept Introduction:
Atomic radius is half the distance between two molecules of an atom. Cation is formed by removal of electron/s from an atom and anions are formed by addition of electron/s in an atom. For same atoms, cationic radius is always less than that of the neutral atom and anionic radius is always greater than that of the neutral atom.
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Chapter 2 Solutions
Bundle: Introduction to General, Organic and Biochemistry, 11th + OWLv2, 4 terms (24 months) Printed Access Card
- 2-59 You are presented with a Lewis dot structure of element X as X.. To which two groups in the Periodic Table might this element belong?arrow_forward2-67 Account for the fact that the first ionization energy of oxygen is less than that of nitrogen.arrow_forward2-89 Assume that a new element has been discovered with atomic number 117. Its chemical properties should be similar to those of astatine (At). Predict whether the new element’s ionization energy will be greater than, the same as, or smaller than that of: (a)At (b)Raarrow_forward
- 2-99 A 7.12 g sample of magnesium is heated with 1.80 g of bromine. All the bromine is used up, and 2.07 g of magnesium bromide is produced. What mass of magnesium remains unreacted?arrow_forward2-98 Explain how the ionization energy of atoms changes when proceeding down a group of the Periodic Table and explain why this change occurs.arrow_forward2-73 (Chemical Connections 2D) Copper is a soft metal. how can it be made harder?arrow_forward
- 2-94 Using your knowledge of trends in element sizes in going across a period of the Periodic Table, exp lain why the density of the elements increases from potassium through vanadium. (Recall from Section 1-7 that specific gravity is numerically the same as density but has no units.) Element Specific Gravity K 0.862 Ca1.55 Se 2.99 Ti 4.54 V 6.11arrow_forward2-47 Which element in each pair is more metallic? (a) Silicon or aluminum (b) Arsenic or phosphorus (c) Gallium or germanium (d) Gallium or aluminumarrow_forward2-23 It has been said, “The number of protons determines the identity of the element.” Do you agree or disagree with this statement? Explain.arrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning