1.

Rearrange the columns 2 and 3 so as to match with the column 1. Column 1 Column 2 Column 3 i. Triad ii. Octave iii. Atomic number iv. Period v. Nucleus vi. Electron a. Lightest and negatively charged particle in all the atoms b. Concentrated mass and positive charge c. Average of the first and the third atomic mass d. Properties of the eighth element similar to the first e. Positive charge on the nucleus f. Sequential change in molecular formulae 1.Mendeleev 2. Thomson 3. Newlands 4. Rutherford 5. Dobereiner 6. Moseley

Answer» Rearrange the columns 2 and 3 so as to match with the column 1.













Column 1 Column 2 Column 3
i. Triad

ii. Octave

iii. Atomic number

iv. Period

v. Nucleus

vi. Electron
a. Lightest and negatively charged particle in all the atoms

b. Concentrated mass and positive charge

c. Average of the first and the third atomic mass

d. Properties of the eighth element similar to the first

e. Positive charge on the nucleus

f. Sequential change in molecular formulae

1.Mendeleev


2. Thomson


3. Newlands


4. Rutherford


5. Dobereiner


6. Moseley



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