Question

1. Rearrange the columns 2 and 3 so as to match with the
Column 1
Column 2
i. Triad
a. Lightest and negatively charged particle in all the
ii. Octave
atoms
iii. Atomic number 6. 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​

Answer 1

Answer:

(I) - c - 5

(II) - d - 3

(III) - e - 6

(IV) - f - 1

(V) - b - 4

(VI) - a - 2

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