Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 20: Problem 123

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.

Short Answer

Expert verified
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.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

An unknown element is a nonmetal and has a valence electron configuration of \(n s^{2} n p^{4}\). a. How many valence electrons does this element have? b. What are some possible identities for this element? c. What is the formula of the compound(s) this element would form with lithium? hydrogen? magnesium? aluminum? fluorine?

Phosphate buffers are important in regulating the \(\mathrm{pH}\) of intracellular fluids at \(\mathrm{pH}\) values generally between \(7.1\) and \(7.2\). What is the concentration ratio of \(\mathrm{H}_{2} \mathrm{PO}_{4}^{-}\) to \(\mathrm{HPO}_{4}^{2-}\) in intracellular fluid at \(\mathrm{pH}=7.15 ?\) \(\mathrm{H}_{2} \mathrm{PO}_{4}^{-}(a q) \rightleftharpoons \mathrm{HPO}_{4}^{2-}(a q)+\mathrm{H}^{+}(a q) \quad K_{\mathrm{a}}=6.2 \times 10^{-8}\) Why is a buffer composed of \(\mathrm{H}_{3} \mathrm{PO}_{4}\) and \(\mathrm{H}_{2} \mathrm{PO}_{4}^{-}\) ineffective in buffering the \(\mathrm{pH}\) of intracellular fluid? \(\mathrm{H}_{3} \mathrm{PO}_{4}(a q) \rightleftharpoons \mathrm{H}_{2} \mathrm{PO}_{4}^{-}(a q)+\mathrm{H}^{+}(a q) \quad K_{\mathrm{a}}=7.5 \times 10^{-3}\)

How do the acidities of the aqueous solutions of the alkaline earth metal ions \(\left(\mathrm{M}^{2+}\right)\) change in going down the group?

Many oxides of nitrogen have positive values for the standard free energy of formation. Using NO as an example, explain why this is the case.

EDTA is used as a complexing agent in chemical analysis. Solutions of EDTA, usually containing the disodium salt \(\mathrm{Na}_{2} \mathrm{H}_{2} \mathrm{EDTA}\), are also used to treat heavy metal poisoning. The equilibrium constant for the following reaction is \(1.0 \times 10^{23}\) : Calculate \(\left[\mathrm{Pb}^{2+}\right]\) at equilibrium in a solution originally \(0.0010 \mathrm{M}\) in \(\mathrm{Pb}^{2+}, 0.050 \mathrm{M}\) in \(\mathrm{H}_{2} \mathrm{EDTA}^{2-}\), and buffered at \(\mathrm{pH}=6.00\).
See all solutions

Recommended explanations on Chemistry Textbooks

Kinetics

Read Explanation

Chemical Reactions

Read Explanation

Making Measurements

Read Explanation

The Earths Atmosphere

Read Explanation

Inorganic Chemistry

Read Explanation

Physical Chemistry

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free