COPY: Chemistry Unit 2: Structure of Atom

What subatomic particles were discovered in the nineteenth and twentieth centuries?

Neutrons, neutrinos, and electrons

Muons, bosons, and fermions

Protons, neutrons, and electrons (correct)

Photons, positrons, and electrons

What did Michael Faraday's experiments on electrical discharge through gases suggest?

The particulate nature of electricity (correct)

The wave nature of electricity

The magnetic nature of electricity

The atomic nature of electricity

Who first proposed the atomic theory of matter?

Einstein

John Dalton (correct)

Michael Faraday

Faraday and Dalton together

Who began to study electrical discharge in partially evacuated tubes in the mid-1850s?

Michael Faraday Signup and view all the answers

What did Dalton's atomic theory successfully explain?

The law of conservation of mass Signup and view all the answers

What are the two subatomic particles discussed in this section?

Electron and proton Signup and view all the answers

What did the experiments on electrical discharge through gases provide an insight into?

The structure of atoms Signup and view all the answers

Which scientific laws were successfully explained by Dalton's atomic theory?

Law of conservation of mass, law of constant composition, and law of multiple proportion Signup and view all the answers

What is the meaning of the word 'atom' derived from the Greek word 'a-tomio'?

Uncutable or non-divisible Signup and view all the answers

Who were of the view that atoms are the fundamental building blocks of matter?

Greek philosophers Signup and view all the answers

What did the Indian and Greek philosophers propose about atoms?

Atoms are the fundamental building blocks of matter Signup and view all the answers

What is the unit of structure discussed in this unit?

Atoms Signup and view all the answers

What does the quantum mechanical model of atom describe?

Atom's internal structure Signup and view all the answers

What is the significance of the discovery of electron, proton and neutron?

Traces differences in chemical behavior of elements Signup and view all the answers

What was the significance of the early Indian and Greek philosophers' proposal about atoms?

It introduced the idea that atoms are fundamental building blocks of matter. Signup and view all the answers

What did the early Indian and Greek philosophers mean by the word 'atomio'?

Non-divisible Signup and view all the answers

What did the discovery of electron, proton, and neutron lead to?

Development of quantum mechanical model of atom Signup and view all the answers

What did the experiments on electrical discharge through gases suggest according to the text?

Existence of atoms as fundamental building blocks Signup and view all the answers

What is the nature of electromagnetic radiation according to the text?

Discrete Signup and view all the answers

Which principle defines the maximum multiplicity in an atom's electronic configuration?

Hund's rule Signup and view all the answers

Which scientist first proposed the atomic theory of matter on a firm scientific basis?

John Dalton Signup and view all the answers

What were the major problems faced by scientists in the nineteenth and twentieth centuries regarding the atom?

Explaining the formation of different kinds of molecules by the combination of different atoms Signup and view all the answers

What did Michael Faraday's experiments on electrical discharge through gases suggest?

The particulate nature of electricity Signup and view all the answers

In what year did John Dalton propose his atomic theory of matter?

1808 Signup and view all the answers

Which subatomic particles were discovered in the mid-1850s by scientists studying electrical discharge in partially evacuated tubes?

Electrons and protons Signup and view all the answers

What did the experiments on electrical discharge through gases provide an insight into?

The particulate nature of electricity Signup and view all the answers

Which laws were successfully explained by Dalton's atomic theory?

Law of conservation of mass, law of constant composition, and law of multiple proportion Signup and view all the answers

What was the main contribution of Michael Faraday’s experiments on electrical discharge through gases?

Evidence for the particulate nature of electricity Signup and view all the answers

What was the focus of scientists studying electrical discharge in partially evacuated tubes in the mid-1850s?

The particulate nature of electricity and its impact on chemical reactions Signup and view all the answers

COPY: Chemistry Unit 2: Structure of Atom

Questions and Answers

What subatomic particles were discovered in the nineteenth and twentieth centuries?

What did Michael Faraday's experiments on electrical discharge through gases suggest?

Who first proposed the atomic theory of matter?

Who began to study electrical discharge in partially evacuated tubes in the mid-1850s?

What did Dalton's atomic theory successfully explain?

What are the two subatomic particles discussed in this section?

What did the experiments on electrical discharge through gases provide an insight into?

Which scientific laws were successfully explained by Dalton's atomic theory?

What is the meaning of the word 'atom' derived from the Greek word 'a-tomio'?

Who were of the view that atoms are the fundamental building blocks of matter?

What did the Indian and Greek philosophers propose about atoms?

What is the unit of structure discussed in this unit?

What does the quantum mechanical model of atom describe?

What is the significance of the discovery of electron, proton and neutron?

What was the significance of the early Indian and Greek philosophers' proposal about atoms?

What did the early Indian and Greek philosophers mean by the word 'atomio'?

What did the discovery of electron, proton, and neutron lead to?

What did the experiments on electrical discharge through gases suggest according to the text?

What is the nature of electromagnetic radiation according to the text?

Which principle defines the maximum multiplicity in an atom's electronic configuration?

Which scientist first proposed the atomic theory of matter on a firm scientific basis?

What were the major problems faced by scientists in the nineteenth and twentieth centuries regarding the atom?

What did Michael Faraday's experiments on electrical discharge through gases suggest?

In what year did John Dalton propose his atomic theory of matter?

Which subatomic particles were discovered in the mid-1850s by scientists studying electrical discharge in partially evacuated tubes?

What did the experiments on electrical discharge through gases provide an insight into?

Which laws were successfully explained by Dalton's atomic theory?

What was the main contribution of Michael Faraday’s experiments on electrical discharge through gases?

What was the focus of scientists studying electrical discharge in partially evacuated tubes in the mid-1850s?

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