10 Questions
Which type of radioactive radiation consists of high-energy rays with no charge?
Gamma (γ) rays
What is the mass of alpha (α) particles compared to a hydrogen atom?
Four times the mass of a hydrogen atom
According to the text, which type of radiation consists of electrons coming from inside the nucleus?
Beta (β) rays
Who proposed the 'plum-pudding' model of an atom?
J.J. Thomson
What are alpha (α) particles made up of?
Positively charged particles
Which type of rays were deflected by oppositely charged metal plates?
Alpha (α) rays
What did Ernest Rutherford work with Thomson to test in 1911?
'Plum-pudding' model of an atom
What is the charge of beta (β) particles?
-1
What is the magnitude of the charge of alpha (α) particles compared to an electron?
Twice the magnitude of the charge of an electron
What did Thomson propose for the distribution of electrons and protons in his 'plum-pudding' model?
They were randomly distributed in a positively charged cloud.
Test your knowledge of radioactivity and its relation to Dalton's atomic theory. Explore the types of radioactive emissions and their characteristics, such as alpha particles.
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