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Chapter 2: Problem 37

Pair the following species that contain the same number of electrons: \(\mathrm{Ar}, \mathrm{Sn}^{4+}, \mathrm{F}^{-}, \mathrm{Fe}^{3+}, \mathrm{P}^{3-}, \mathrm{V}, \mathrm{Ag}^{+}, \mathrm{N}^{3-}\)

Short Answer

Expert verified
The pairs are: Argon (Ar) and Phosphorus (P^{3-}), Tin Sn(4+) and Silver Ag(+), Fluorine (F-) and Nitrogen (N^{3-}), Iron (Fe^{3+}) and Vanadium (V).

Step by step solution

01

Determine the number of protons

The atomic number, also known as the number of protons, of an atom can be found in the periodic table. Therefore, for each given species, find out their atomic numbers. Argon (Ar) has 18 protons, Tin SN(4+) has 50 protons, Fluorine (F-) has 9 protons, Iron (Fe^{3+}) has 26 protons, Phosphorus (P^{3-}) has 15 protons, Vanadium (V) has 23 protons, Silver Ag(+) has 47 protons, Nitrogen (N^{3-}) has 7 protons.
02

Determine the number of electrons

In an ion, the number of electrons is the atomic number minus or plus the ion charge. For neutral atoms, the number of protons equals the number of electrons. Argon has 18 electrons, Tin Sn(4+) has 46 electrons, Fluorine (F-) has 10 electrons, Iron (Fe^{3+}) has 23 electrons, Phosphorus (P^{3-}) has 18 electrons, Vanadium has 23 electrons, Silver Ag(+) has 46 electrons, Nitrogen (N^{3-}) has 10 electrons.
03

Pair the species with the same number of electrons

Using the data obtained in step 2, pair the species that have the same number of electrons. The pairs are: Argon (Ar) and Phosphorus (P^{3-}), Tin Sn(4+) and Silver Ag(+), Fluorine (F-) and Nitrogen (N^{3-}), Iron (Fe^{3+}) and Vanadium (V).

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Most popular questions from this chapter

Ethane and acetylene are two gaseous hydrocarbons. Chemical analyses show that in one sample of ethane, \(2.65 \mathrm{~g}\) of carbon are combined with \(0.665 \mathrm{~g}\)of hydrogen, and in one sample of acetylene, \(4.56 \mathrm{~g}\) of carbon are combined with \(0.383 \mathrm{~g}\) of hydrogen. (a) Are these results consistent with the law of multiple proportions? (b) Write reasonable molecular formulas for these compounds.

The elements in Group 8 A of the periodic table are called noble gases. Can you suggest what "noble" means in this context?

Name these compounds: (a) \(\mathrm{KClO}\) (b) \(\mathrm{Ag}_{2} \mathrm{CO}_{3}\) (c) \(\mathrm{FeCl}_{2}\), (d) \(\mathrm{KMnO}_{4}\), (e) \(\mathrm{CsClO}_{3}\), (f) \(\mathrm{HIO},(\mathrm{g}) \mathrm{FeO}\), (h) \(\mathrm{Fe}_{2} \mathrm{O}_{3}\) (i) \(\mathrm{TiCl}_{4},(\mathrm{j}) \mathrm{NaH},(\mathrm{k}) \mathrm{Li}_{3} \mathrm{~N},\) (1) \(\mathrm{Na}_{2} \mathrm{O}\) (m) \(\mathrm{Na}_{2} \mathrm{O}_{2},\) (n) \(\mathrm{FeCl}_{3} \cdot 6 \mathrm{H}_{2} \mathrm{O}\).

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