Question

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

Answer:

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Explanation:

1. ok

Answer 2

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