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Fission, Fusion and Radioactivity MCQ 2

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Questions and Answers

What is the role of electrons in the production of emission line spectra?

Remain stationary in the nucleus and emit light continuously.

Jump to high energy states and emit fixed amounts of energy. (correct)

Carry out radioactive decay within the nucleus.

Move in a random pattern around the nucleus.

In the context of emission line spectra, what determines the frequency of the emitted light?

The density of the nucleus.

The type of emission medium.

The change in energy levels. (correct)

The speed of electron orbit.

What particles make up the nucleus of an atom?

Electrons and protons.

Neutrons and electrons.

Protons and neutrons. (correct)

Electrons and neutrons.

What is the charge of a proton?

+1.6 x 10^-19 C Signup and view all the answers

What is the unique feature about emission line spectra for each element?

Every element has a specific set of wavelengths it emits. Signup and view all the answers

What is the mass number of an atom?

The number of protons plus neutrons Signup and view all the answers

Which of the following describes isotopes?

Atoms with the same atomic number and different atomic mass Signup and view all the answers

What is radiation?

Emission of particles or photons of energy Signup and view all the answers

Which type of radiation has no charge?

Gamma Signup and view all the answers

What is the principle behind the Geiger Müller tube (G-M tube)?

Ionization of gas by radiation Signup and view all the answers

Which process involves the splitting of a large nucleus into two smaller nuclei?

Nuclear fission Signup and view all the answers

Which equation represents the relationship between half-life and decay constant?

T_½=ln2/λ Signup and view all the answers