The given ions are to be placed in decreasing order of size. Concept introduction: The ionic size depends on the number of electrons transferred. The atomic size of cations is smaller than anions. Also the size of ions increases by gaining electrons whereas size decreases by accepting electrons. To determine: The decreasing order of size of ions Cu ,Cu + ,Cu 2 + .
Solution Summary: The author explains that the ionic size depends on the number of electrons transferred. The atomic size of cations is smaller than anions.
Interpretation: The given ions are to be placed in decreasing order of size.
Concept introduction: The ionic size depends on the number of electrons transferred. The atomic size of cations is smaller than anions. Also the size of ions increases by gaining electrons whereas size decreases by accepting electrons.
To determine: The decreasing order of size of ions Cu,Cu+,Cu2+.
(b)
Interpretation Introduction
Interpretation: The given ions are to be placed in decreasing order of size.
Concept introduction: The ionic size depends on the number of electrons transferred. The atomic size of cations is smaller than anions. Also the size of ions increases by gaining electrons whereas size decreases by accepting electrons.
To determine: The decreasing order of size of ions Ni2+,Pd2+,Pt2+.
(c)
Interpretation Introduction
Interpretation: The given ions are to be placed in decreasing order of size.
Concept introduction: The ionic size depends on the number of electrons transferred. The atomic size of cations is smaller than anions. Also the size of ions increases by gaining electrons whereas size decreases by accepting electrons.
To determine: The decreasing order of size of ions O,O−,O2−.
(d)
Interpretation Introduction
Interpretation: The given ions are to be placed in decreasing order of size.
Concept introduction: The ionic size depends on the number of electrons transferred. The atomic size of cations is smaller than anions. Also the size of ions increases by gaining electrons whereas size decreases by accepting electrons.
To determine: The decreasing order of size of ions La3+,Eu3+,Gd3+,Yb3+.
(e)
Interpretation Introduction
Interpretation: The given ions are to be placed in decreasing order of size.
Concept introduction: The ionic size depends on the number of electrons transferred. The atomic size of cations is smaller than anions. Also the size of ions increases by gaining electrons whereas size decreases by accepting electrons.
To determine: The decreasing order of size of ions Te2−,I−,Cs+,Ba2+,La3+.
Use concepts learned in grade 12 chem to explain the most likely two charges of iron ions, Fe2+ and Fe3+. Include details as to where the electrons are added/removed from/to.
Imagine a metallic element had been discovered and was named "Gondolium" (Gn).Gn was found to exhibit chemistry like that of an alkaline earth.
Gn(s) + F2(g) → GnF2(s)
Lattice energy for GnF2
-1950. kJ/mol
First Ionization energy of Gn
450. kJ/mol
Second Ionization energy of Gn
855 kJ/mol
Electron affinity of F
-327.8 kJ/mol
Bond energy of F2
154 kJ/mol
Enthalpy of sublimation (atomization) of Gn
195 kJ/mol
Use the above data to calculate ΔH°f for gondolium fluoride.
Based on Octet rule calcium is most likely forms which ion.
A. Ca2- b. Ca1-
C. Ca6+ d. Ca2+
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