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प्रश्न
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is the charge on the particle ?
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उत्तर
What is the charge on the particle – 1 (negative)
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संबंधित प्रश्न
Write the names of the elements present in the:-
Sodium hydroxide
Define: Chemical bond
What are orbits or shells ?
How did Neils Bohr visualise the atom ?
Fill in the blank
A charged particle is called an _____
Why is it not possible to see an atom even with the most powerful microscope ?
How many times is a proton heavier than an electron?
Give brief information of three subatomic particles with reference to electrical charge, mass and location.
Define the following term:
Atom
Electron, proton, neutron are the types of ______ in an atom.
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which element will lose electron?
Draw the basic structure of an atom representing its –
- Subatomic particles
- Nucleus
- Orbits or shells.
Which of the following statements made by Dalton has not undergone any change?
An element is composed of ______ atoms.
The number of atoms present in a molecule is called its ______.
1 mole of Gold and Silver contain same number of atoms.
Give the salient features of “Modern atomic theory”.
Dalton’s atomic theory successfully explained
(i) Law of conservation of mass
(ii) Law of constant composition
(iii) Law of radioactivity
(iv) Law of multiple proportions
Lead is also known as plumbum.
