chemistry

Raymond Daudel

Raymond Daudel is a chemistry topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Raymond Daudel rather than just read about it. In short: Raymond Daudel (2 February 1920 – 20 June 2006) was a French theoretical and quantum chemist. Trained as a physicist, he was an assistant to Irène Joliot-Curie at the Radium Institute.

Key takeaways

Raymond Daudel belongs to chemistry; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Raymond Daudel to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Raymond Daudel from memory before moving on to harder problems.

Reference excerpt

Raymond Daudel (2 February 1920 – 20 June 2006) was a French theoretical and quantum chemist. Trained as a physicist, he was an assistant to Irène Joliot-Curie at the Radium Institute. Daudel spent almost the entirety of his career as professor at the Sorbonne and director of a laboratory of the Centre National de la Recherche Scientifique (CNRS). He is quoted as saying that the latter "was much better because the CNRS was very rich". This allowed Daudel to attract many co-workers from elsewhere in France and internationally. Raymond Daudel was Officier de la Légion d'honneur and Officier de l'Ordre National du Mérite. He served as President of the European Academy of Arts Sciences and Humanities, in Paris, France. Daudel was a founding member and Honorary President of the International Academy of Quantum Molecular Science. An author as well as an academic, Raymond Daudel authored several books, including Quantum chemistry, originally with R. Lefebyre and C. Moser in 1959 (Interscience Publishers, Inc., New York) and later with G. Leroy, D. Peeters, and M. Sana, published by Wiley in 1983. He was responsible for the organization of the first International Congress in Quantum Chemistry, held in Menton, France in 1973.

References

Worked examples

Example 1 — a first encounter with Raymond Daudel

Start with the simplest possible case. Write down what Raymond Daudel claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Raymond Daudel before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Raymond Daudel ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Raymond Daudel

In research: Raymond Daudel appears in chemistry research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Raymond Daudel in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Raymond Daudel is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1920 births, 2006 deaths, 20th-century French chemists, so understanding it makes those chapters shorter.
In everyday life: Look for Raymond Daudel outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Raymond Daudel in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Raymond Daudel means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Raymond Daudel out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Raymond Daudel in simple terms?

Raymond Daudel (2 February 1920 – 20 June 2006) was a French theoretical and quantum chemist. Trained as a physicist, he was an assistant to Irène Joliot-Curie at the Radium Institute.

Why does Raymond Daudel matter?

Because it connects several chemistry ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Raymond Daudel?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Raymond Daudel.