atoms are indestructible
all atoms of a pure substance, or elements are identical
atoms of different substance have different weights
all of the above
A and B only
Explanation
Video Explanation
No video available
Post your Contribution
Discussions (23)
pls confirm your answer, am not sure of the correct ans, but atoms are definitely destructable, what happened to radioactivity? the ans is most probably C
The answer is not D its C
becaude atom are destructible/divisible into protons and neutrons
C is correct
We're not referring to Dalton's theory here... As four of his five theories were disproved
D is correct
Now let's do a critical analysis of the question.
First, we shouldn't forget that this is physics not chemistry
option A is correct based on Democritus experiment with yam
option B is correct: For instance an oxygen atom is chemically identical to other atoms of Oxygen provided both are in their pure state
option C is obviously correct as the RAM of Oxygen (16) is different from that of Cl (35.5)
option E: A and B have been proved correct
Therefore option D is the correct answer
atoms are not only destroyed by radioactivity but also by bombs so the answer is C
Does Dalton's atomic theory still hold????
A and B is clearly from his theory which have been modified, I believe the answer is C or better still no answer
This question is testing Dalton’s Atomic Theory (the classical one used in WAEC/NECO), not modern nuclear physics. That detail matters a lot 👀
Let’s check each statement as Dalton meant it:
A️⃣ Atoms are indestructible
✔️ True (according to Dalton)
He said atoms cannot be created or destroyed in chemical reactions.
B️⃣ All atoms of a pure substance (element) are identical
✔️ True (Dalton’s view)
Isotopes were not known then, so this was accepted.
C️⃣ Atoms of different substances have different weights
✔️ True
Different elements have different atomic masses.
Final decision
Since A, B, and C are all true under Dalton’s atomic theory:
✅ Correct answer: D — all of the above
I think in d case of radioactivity atoms are not destroyed they r simply broken down so i think d abswer is actually D
