Questions

true or false.[1 Mark each]

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10 questions · timed · auto-graded

Question 11 Mark
When an atom gains an electron it has more number of electrons and thus it carries positive charge.
Answer
False
Correct statement:
When an atom gains an electron it has more number of electrons and thus it carries negative charge.
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Question 41 Mark
An atom has a number of orbits and each orbit has protons.
Answer
False
Correct statement:
An atom has a number of orbits and each orbit has electrons.
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Question 61 Mark
The first scientific theory about atom was given by J J. Thomson.
Answer
False
Correct statement:
The first scientific theory about atom was given by John Dalton.
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Question 91 Mark
James Chadwick discovered the fundamental particle called proton.
Answer
False
Correct statement:
James Chadwick discovered the fundamental particle called neutron.
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true or false.[1 Mark each] - Science STD 8 Questions - Vidyadip