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प्रश्न
‘Electrons revolve around the nucleus in fixed orbits or shells called energy levels’. State how these energy levels are represented.
उत्तर
- Electrons revolve around the nucleus in – fixed ‘orbits’ called energy levels
- The energy levels 1, 2, 3… are represented by – integer ‘n’ or as K, L, M, N…
- Electrons rotate around the nucleus, in one or more of the energy levels.
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संबंधित प्रश्न
Give the following a suitable word/phrase.
The number of protons present in the nucleus of an atom.
Complete the table below by identifying A, B, C, D, E and F.
FILL IN THE BLANK
The protons and neutrons are held firmly in the nucleus by strong .........................
FILL IN THE BLANK
Amount of energy stored inside the ..................... is known as nuclear energy.
State Dalton's atomic theory.
How was it shown that atom has empty space?
What are nucleons? How many nucleons are present in phosphorus? Draw its structure.
Name the following:
The element which does not contain any neutron in its nucleus.
Choose the correct option
Rutherford's alpha-particle scattering experiment discovered
What is meant by the term nucleus
