Question

Which of the following is correctly matched?

• A. $\begin{array}{cc}\text{J.J. Thomson}& \text{Atomic theory}\\ \text{Rutherford}& \text{Plum pudding model}\\ \text{John Dalton}& \text{Planetary model}\\ \text{Lavoisier}& \text{Law of conservation of mass}\end{array}$
• B. $\begin{array}{cc}\text{J.J. Thomson}& \text{Plum pudding model}\\ \text{Rutherford}& \text{Planetary model}\\ \text{John Dalton}& \text{Atomic theory}\\ \text{Lavoisier}& \text{Law of conservation of mass}\end{array}$
• C. $\begin{array}{cc}\text{J.J. Thomson}& \text{Law of conservation of mass}\\ \text{Rutherford}& \text{Atomic theory}\\ \text{John Dalton}& \text{Planetary model}\\ \text{Lavoisier}& \text{Plum pudding model}\end{array}$
• D. $\begin{array}{cc}\text{J.J. Thomson}& \text{Plum pudding model}\\ \text{Rutherford}& \text{Planetary model}\\ \text{Bohr}& \text{Atomic theory}\\ \text{Lavoisier}& \text{Law of conservation of mass}\end{array}$

Answer 1

The correct option is B

$\begin{array}{cc}\text{J.J. Thomson}& \text{Plum pudding model}\\ \text{Rutherford}& \text{Planetary model}\\ \text{John Dalton}& \text{Atomic theory}\\ \text{Lavoisier}& \text{Law of conservation of mass}\end{array}$

Law of constant proportion was given by Lavoisier.

After that Dalton proposed his atomic theory.

Then J.J. Thomson proposed the plum pudding model.

After that Rutherford conducted the gold foil experiment and proposed the planetary model.

And then finally Bohr gave the explanation about why electrons don't collapse and explained energy levels, i.e., shells/orbits.