New PDF release: Dictionary of Physics, Chemistry, Biology, Mathematics

By Karen Scott

ISBN-10: 8189940481

ISBN-13: 9788189940485

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Additional resources for Dictionary of Physics, Chemistry, Biology, Mathematics

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Period The elements in a horizontal row of the periodic table. Periodicity Regular periodic variations of properties of elements with atomic number (and position in the periodic table). Periodic Law The properties of the elements are periodic functions of their atomic numbers. Periodic Table An arrangement of elements in order of increasing atomic numbers that also emphasizes periodicity. Peroxide A compound containing oxygen in the -1 oxidation state. Metal peroxides contain the peroxide ion, O22pH Negative logarithm of the concentration (mol/L) of the H3O+[H+] ion; scale is commonly used over a range 0 to 14.

Particulate Matter Fine divided solid particles suspended in polluted air. Pauli Exclusion Principle No two electrons in the same atom may have identical sets of four quantum numbers. Percentage Ionization The percentage of the weak electrolyte that ionizes in a solution of given concentration. Percent by Mass 100% times the actual yield divided by theoretical yield. Percent Composition The mass percent of each element in a compound. Percent Purity The percent of a specified compound or element in an impure sample.

Cork cambium A layer of lateral meristematic tissue between the cork and the phloem in the bark of woody plants. coronary arteries Arteries that supply the heart's muscle fibers with nutrients and oxygen. corpus callosum Tightly bundled nerve fibers that connect the right and left hemispheres of the cerebrum. corpus luteum A structure formed from the ovulated follicle in the ovary; secretes progesterone and estrogen. , the adrenal cortex, which produces several steroid hormones; 2) in plants, the region of the stem or root between the epidermis and the vascular bundle(s).

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Dictionary of Physics, Chemistry, Biology, Mathematics by Karen Scott

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