Question

ASAP PLS
1. Which part of John Dalton’s theory was disproved by J.J. Thomson’s cathode-ray tube experiments?(1 point)
A. Atoms can join together.
B. Atoms are indivisible.
C. Atoms can form new substances.
D. Atoms are small.

2. Which observation by Ernest Rutherford and his students refuted the plum pudding model?(1 point)

A. alpha particle attraction
B. alpha particle deflection
C. electron deflection
D. electron attraction

Answer 1

John Dalton presented a theory that atoms are indivisible but this theory was rejected and disapproved by J.J. Thomson's Cathode ray tube experiment.

John Dalton proposed that atoms are indivisible and this theory was later approved and found correct.

Rutherford Gold foil experiment disapproves the Thomson plum pudding model.

Rutherford proposed that atoms carry negatively charged electrons and there are positively charged alpha particles in nucleus which balance the atoms charge structure.

Electrons are deflected with the nucleus of the atom which is positively charged.

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Answer 2

Answer:

1. B Atoms are indivisible

2. B Alpha particle deflection

Explanation:

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