Balbharti Maharashtra State Board Class 10 Science Solutions Part 1 Chapter 2 Periodic Classification of Elements Notes, Textbook Exercise Important Questions and Answers. Maharashtra State Board Class 10 Science Solutions Part 1 Chapter 2 Periodic Classification of Elements Question 1: Rearrange the columns 2 and 3 so as to match with the column 1. Column 1 Column 2 Column 3 i. Triad a. Lightest and negatively charged particle in all the atoms 1. Mendeleev ii. Octave b. Concentrated mass and positive charge 2. Thomson iii. Atomic number c. Average of the first and the third atomic mass 3. Newlands iv. Period d. Properties of the eighth element similar to the first 4. Rutherford v. Nucleus e. Positive charge on the nucleus 5. Dobereiner vi. Electron f. Sequential change in molecular formulae 6. Moseley Answer: Column 1 Column 2 Column 3 i. Triad Average of the first and the third atomic mass Dobereiner ii. Octave Properties of the eighth element similar to th...
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