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WorksheetsChem 8 atomic structure
Total questions: 11
Worksheet time: 10mins
What is A?
electron
proton
nucleus
What is B?
electron
proton
nucleus
What is D?
electron
proton
nucleus
Name the subatomic particle which is neutral.
(a)
Which of the following is the experiment done by J.J. Thomson?
cathode ray experiment
gold foil experiment
plum pudding experiment
alpha particle emitter
Each atom is neutral as it has equal number of neutrons and protons.
TRUE
FALSE
Which of the following evidences suggested to Rutherford that plum pudding model is incorrect?
About 1/10 000 alpha particles bounced backwards off the gold foil.
Most of the alpha particles go straight through the foil.
There are empty spaces in between the nuclei.
Tiny particles were formed when he fired alpha particles into the air.
Why did Hantaro Nagaoka disagree with J.J. Thomson's model?
They don't speak the same language.
It is not possible for negative charges to be spread out in a positively charged sphere.
He prefers sushi not plum pudding.
The positive particles bounced backwards.
"Electrons move in orbits or shells." Who suggested this?
J.J. Thomson
Hantaro Nagaoka
Ernest Rutherford
Niels Bohr
James Chadwick
Which of the following describes you the best? (no marks for this)
I understand the topic well because i'm smart.
I understand the topic well because i pay attention in class.
I understand the topic well because i study the textbook and notes.
I cannot understand the topic because i did not pay attention in class.
I cannot understand the topic because i did not join school and did not do the work.
Anything to tell your Science teacher? (example: you're moving too fast, i can't follow/ can we go through the topics faster?)
