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Tag Archives: Table

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Periodic Table Trends: Explained

ScienceBy William Anderson (Schoolworkhelper Editorial Team)October 19, 2017Leave a comment

(a). Define Atomic radius? Ans. The distance from the centre of the atom to the outermost electrons is called the Atomic radius. (b) State and explain the trends in the atomic radius for the period and a group. Ans.  As you move across a period the atomic radius decreases except for the noble gases, because…

Solubility of KNO3 Lab: Table & Graph

ScienceBy William Anderson (Schoolworkhelper Editorial Team)April 14, 20132 Comments

Purpose: Find crystallization temperatures for 7 concentrations of KNO3 and make a solubility graph Materials: KNO3, test tube, stir rod, weigh boats, hot plates, thermometer, 10 mL graduated cylinder. Procedure: -In two test tubes, put exactly 5 mL water in each -Put assigned amount KNO3 in each -Heat in hot water bath until dissolved- you…

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