Question

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

Answer 1

Answer:

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