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प्रश्न
What are orbits or shells ?
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उत्तर
The fixed circular paths along which electrons revolve round the nucleus.
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संबंधित प्रश्न
ANSWER IN DETAIL
Enlist the features of Bohr’s model of an atom. How did he correct the Rutherford’s model ?
Define:- Radicals
Name the particles which revolve around the nucleus.
Name the particle or particles you would expect to find in :
The orbit of an atom
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is such a particle called ?
Name the unit in which the radius of an atom is usually expressed.
Find the mass of 2 moles of nitrogen atoms.
Calculate the number of moles in 12.044 × 1025 atoms of phosphorus.
What is the contribution of the following in atomic structure?
Maharshi Kanada
Draw the diagrams representing the atomic structures of the following: Neon
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which element will gain electron?
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which will form negative ion?
The smallest particle of matter that can exist by itself is ______.
Define – Atom.
An atom of an element has no electron. Will that atom have any mass or not? Can an atom exist without electron? If so then give example.
Project.
To have an idea of what atoms are, students can be asked to construct atoms using pipe cleaners (thin metal wires-electron shells), pompoms (balls-different colours for protons and neutrons) and beads (electrons). Students will love and enjoy putting them together and they look great hanging from the ceiling in the classroom.
The number of atoms present in a molecule is called its ______.
Give the salient features of “Modern atomic theory”.
The most abundant type of atom is the universe is ______.
What is the fundamental particle of an element?
