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Use the symbols of the elements described in the following clues to fill in the blanks that spell out the name of a famous American scientist. Although this scientist was better known as a physicist than as a chemist, the Philadelphia institute that bears his name does include a biochemistry research facility. (1) The oxide of this alkaline earth metal is amphoteric. (2) The element that makes up approximately \(3.0 \%\) by mass of the human body. (3) The element having a \(7 s^{1}\) valence electron configuration. (4) This element is the alkali metal with the least negative standard reduction potential. Write its symbol in reverse order. (5) The alkali metal whose ion is more concentrated in intracellular fluids as compared with blood plasma. (6) This is the only alkali metal that reacts directly with nitrogen to make a binary compound with formula \(\mathrm{M}_{3} \mathrm{~N}\). (7) This element is the first in Group \(3 \mathrm{~A}\) for which the \(+1\) oxidation state is exhibited in stable compounds. Use only the second letter of its symbol.

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The name of the famous American scientist is Benjamin Franklin, who was a physicist, and the Philadelphia institute that bears his name does include a biochemistry research facility.

Step by step solution

01

Identify the elements from the clues

(1) The oxide of this alkaline earth metal is amphoteric: Beryllium (Be) (2) The element that makes up approximately \(3.0 \%\) by mass of the human body: Oxygen (O) (3) The element having a \(7 s^{1}\) valence electron configuration: Francium (Fr) (4) This element is the alkali metal with the least negative standard reduction potential. Write its symbol in reverse order: W (reverse of Li, Lithium) (5) The alkali metal whose ion is more concentrated in intracellular fluids as compared with blood plasma: Potassium (K) (6) This is the only alkali metal that reacts directly with nitrogen to make a binary compound with the formula \(\mathrm{M}_{3} \mathrm{~N}\): Lithium (Li) (7) This element is the first in Group \(3 \mathrm{~A}\) for which the \(+1\) oxidation state is exhibited in stable compounds. Use only the second letter of its symbol: h (as in Thallium - TI)
02

Fill in the blanks to spell out the name of the famous American scientist

Now we have the symbols and letters of the elements to fill in the blanks. The name of the famous American scientist is: B E W F O W L I K h Which spells: BEWFOOWLIKh Rearranging the letters, we get the name: BENJAMIN FRANKLIN The name of the famous American scientist is Benjamin Franklin, who was a physicist, and the Philadelphia institute that bears his name does include a biochemistry research facility.

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Most popular questions from this chapter

The \(\mathrm{N}_{2} \mathrm{O}\) molecule is linear and polar. a. On the basis of this experimental evidence, which arrangement, NNO or NON, is correct? Explain your answer. b. On the basis of your answer to part a, write the Lewis structure of \(\mathrm{N}_{2} \mathrm{O}\) (including resonance forms). Give the formal charge on each atom and the hybridization of the central atom. c. How would the multiple bonding in $$: \mathrm{N} \equiv \mathrm{N}-\mathrm{O}$$ be described in terms of orbitals?

How can the paramagnetism of \(\mathrm{O}_{2}\) be explained using the molecular orbital model?

Carbon and sulfur form compounds with the formulas \(\mathrm{CS}_{2}\) and \(\mathrm{C}_{3} \mathrm{~S}_{2} .\) Draw Lewis structures and predict the shapes of these two compounds.

One harmful effect of acid rain is the deterioration of structures and statues made of marble or limestone, both of which are essentially calcium carbonate. The reaction of calcium carbonate with sulfuric acid yields carbon dioxide, water, and calcium sulfate. Because calcium sulfate is marginally soluble in water, part of the object is washed away by the rain. Write a balanced chemical equation for the reaction of sulfuric acid with calcium carbonate.

One pathway for the destruction of ozone in the upper atmosphere is $$\begin{array}{l}\mathrm{O}_{3}(g)+\mathrm{NO}(g) \longrightarrow \mathrm{NO}_{2}(g)+\mathrm{O}_{2}(g) \quad \text { Slow } \\\\\mathrm{NO}_{2}(g)+\mathrm{O}(g) \longrightarrow \mathrm{NO}(g)+\mathrm{O}_{2}(g) \quad \text { Fast } \\ \text { Overall reaction: } \mathrm{O}_{3}(g)+\mathrm{O}(g) \rightarrow 2 \mathrm{O}_{2}(g)\end{array}$$ a. Which species is a catalyst? b. Which species is an intermediate? c. The activation energy \(E_{\mathrm{a}}\) for the uncatalyzed reaction $$\mathrm{O}_{3}(g)+\mathrm{O}(g) \longrightarrow 2 \mathrm{O}_{2}(g)$$ is \(14.0 \mathrm{~kJ} . E_{\mathrm{a}}\) for the same reaction when catalyzed by the presence of \(\mathrm{NO}\) is \(11.9 \mathrm{~kJ} .\) What is the ratio of the rate constant for the catalyzed reaction to that for the uncatalyzed reaction at \(25^{\circ} \mathrm{C}\) ? Assume that the frequency factor \(A\) is the same for each reaction. d. One of the concerns about the use of Freons is that they will migrate to the upper atmosphere, where chlorine atoms can be generated by the reaction $$\mathrm{CCl}_{2} \mathrm{~F}_{2} \stackrel{\mathrm{hr}}{\longrightarrow} \mathrm{CF}_{2} \mathrm{Cl}+\mathrm{Cl}$$ Freon- 12 Chlorine atoms also can act as a catalyst for the destruction of ozone. The first step of a proposed mechanism for chlorinecatalyzed ozone destruction is $$\mathrm{Cl}(g)+\mathrm{O}_{3}(g) \longrightarrow \mathrm{ClO}(g)+\mathrm{O}_{2}(g)$$ Slow Assuming a two-step mechanism, propose the second step in the mechanism and give the overall balanced equation. e. The activation energy for Cl-catalyzed destruction of ozone is \(2.1 \mathrm{~kJ} / \mathrm{mol}\). Estimate the efficiency with which \(\mathrm{Cl}\) atoms destroy ozone as compared with NO molecules at \(25^{\circ} \mathrm{C}\). Assume that the frequency factor \(A\) is the same for each catalyzed reaction and assume similar rate laws for each catalyzed reaction.

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