Periodic Classification Of Elements
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Choose from the following: 6C, 8O, 10Ne, 11Na, 14Si (a) Elements that should be in the sam...
By romiroy12, 5 years ago
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The formula of its oxide An element ‘M’ has atomic number 12. (a) Write its electronic con...
By romiroy12, 5 years ago
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An element ‘M’ has atomic number 11. (a) Write its electronic configuration. (b) State the...
By romiroy12, 5 years ago
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State the Modern Periodic Law for classification of elements. How many (a) groups and (b) ...
By romiroy12, 5 years ago
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An element ‘X’ has atomic number 13. (a) Write its electronic configuration. (b) State the...
By romiroy12, 5 years ago
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The positions of three elements A, B and C in the periodic table are indicated below: Grou...
By romiroy12, 5 years ago
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The atomic number of an element is 16. Predict 1. the number of valence electrons in its a...
By romiroy12, 5 years ago
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145
Two elements X and Y belong to groups 1 and 2 respectively in the same period of periodic ...
By romiroy12, 5 years ago
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Give reasons: 1. Elements in a group have similar chemical properties. 2. Elements of Grou...
By romiroy12, 5 years ago
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In the periodic table, how does the tendency of atoms to lose electrons change on going fr...
By romiroy12, 5 years ago
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