Age, Biography and Wiki
Ralph Pearson (Ralph Gottfrid Pearson) was born on 12 January, 1919 in Chicago, Illinois, U.S.. Discover Ralph Pearson's Biography, Age, Height, Physical Stats, Dating/Affairs, Family and career updates. Learn How rich is He in this year and how He spends money? Also learn how He earned most of networth at the age of 103 years old?
| Popular As |
Ralph Gottfrid Pearson |
| Occupation |
N/A |
| Age |
103 years old |
| Zodiac Sign |
Capricorn |
| Born |
12 January, 1919 |
| Birthday |
12 January |
| Birthplace |
Chicago, Illinois, U.S. |
| Date of death |
October 12, 2022 |
| Died Place |
N/A |
| Nationality |
United States |
We recommend you to check the complete list of Famous People born on 12 January.
He is a member of famous with the age 103 years old group.
Ralph Pearson Height, Weight & Measurements
At 103 years old, Ralph Pearson height not available right now. We will update Ralph Pearson's Height, weight, Body Measurements, Eye Color, Hair Color, Shoe & Dress size soon as possible.
| Physical Status |
| Height |
Not Available |
| Weight |
Not Available |
| Body Measurements |
Not Available |
| Eye Color |
Not Available |
| Hair Color |
Not Available |
Dating & Relationship status
He is currently single. He is not dating anyone. We don't have much information about He's past relationship and any previous engaged. According to our Database, He has no children.
| Family |
| Parents |
Not Available |
| Wife |
Not Available |
| Sibling |
Not Available |
| Children |
Not Available |
Ralph Pearson Net Worth
His net worth has been growing significantly in 2022-2023. So, how much is Ralph Pearson worth at the age of 103 years old? Ralph Pearson’s income source is mostly from being a successful . He is from United States. We have estimated
Ralph Pearson's net worth
, money, salary, income, and assets.
| Net Worth in 2023 |
$1 Million - $5 Million |
| Salary in 2023 |
Under Review |
| Net Worth in 2022 |
Pending |
| Salary in 2022 |
Under Review |
| House |
Not Available |
| Cars |
Not Available |
| Source of Income |
|
Ralph Pearson Social Network
| Instagram |
|
| Linkedin |
|
| Twitter |
|
| Facebook |
|
| Wikipedia |
|
| Imdb |
|
Timeline
In 1983 in collaboration with Robert Parr, he refined the HSAB theory into a quantitative method by calculating values of “absolute hardness” using density functional theory, an approximate method in molecular quantum mechanics. This concept of "absolute hardness" was later connected with the concept of (absolute) electronegativity. Pearson died on October 12, 2022, at the age of 103.
In 1963 he proposed the qualitative theory of hard and soft acids and bases (HSAB) in an attempt to unify the theories of reactivity in inorganic and organic chemistry. In this theory 'Hard' applies to species that are small, have high charge states, and are weakly polarizable. 'Soft' applies to species that are large, have low charge states and are strongly polarizable. Acids and bases interact, and the most stable interactions are hard–hard and soft–soft.
In 1958 Pearson and Fred Basolo, his colleague at Northwestern wrote the influential monograph "Mechanisms of Inorganic Reactions", which integrated concepts from ligand field theory and physical organic chemistry and signaled a shift from descriptive coordination chemistry to a more quantitative science. With another Northwestern colleague, Arthur Atwater Frost, Pearson wrote in 1961 another classic text, Kinetics and Mechanism: A Study of Homogeneous Chemical Reactions (.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free a,.mw-parser-output .citation .cs1-lock-free a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited a,.mw-parser-output .id-lock-registration a,.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription a,.mw-parser-output .citation .cs1-lock-subscription a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:#d33}.mw-parser-output .cs1-visible-error{color:#d33}.mw-parser-output .cs1-maint{display:none;color:#3a3;margin-left:0.3em}.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}ISBN 9780471283478). A subsequent edition was with John W. Moore as co-author (ISBN 978-0471035589).
He received his Ph.D. in physical chemistry in 1943 from Northwestern University, and taught chemistry at Northwestern faculty from 1946 until 1976, when he moved to University of California at Santa Barbara (UCSB). He retired in 1989 but remained active in research in theoretical inorganic chemistry until his death.
Ralph Gottfrid Pearson (January 12, 1919 – October 12, 2022) was an American physical inorganic chemist best known for the development of the concept of hard and soft acids and bases (HSAB).
