Answer:
D) Dalton's theory had repeated observations which were supported by extensive evidence.
Explanation:
Dalton had a basis for this prediction and theory. He worked extensive on gases before stepping forward with the Dalton's atomic theory.
His scientific conjecture was highly corroborated with a wide array of experimental evidence and many infallible proofs.
- Science is a logical way of reasoning that follow methodological approaches.
- It deals with empirical experimental proofs that must have been gathered and the veracity ascertained.
- Dalton during his time presented the scientific community with a pool of observations balanced with experimental evidences he accumulated with time.
Answer:
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A moment causes a rotation about or axis. If the moment is to be taken about a point due to a force F, then in order for a moment to develop, the line of action cannot pass through that point...... the total moment was zero because the moment arm was zero as well
Answer:
Atomic size decreases from left to right in te periodic table.
Explanation:
With increase in effective nuclear charge without a corresponding increase in the number of shells across the period, electrostatic interaction between electrons and the nucleus increases with the net effect that atomic size decreases towards the right of the periodic table. For this reason, there are peaks at the larger alkali metals and valleys at the smaller noble gases.