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प्रश्न
Define: Chemical bond
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उत्तर
Chemical bond— A chemical bond is the binding force between two or more atoms of a molecule.
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संबंधित प्रश्न
Name two particles found inside the nucleus. What are they collectively called ?
Name the particles which revolve around the nucleus.
What are orbits or shells ?
What is the maximum number of electrons present in:
1. first shell
2. second shell
3. third shell and
4. fourth shell
Who originated the word ‘atom’ ?
Name the particle or particles you would expect to find in :
The nucleus of an atom
Fill in the blank
If an atom loses an electron, it acquires ______ a charge.
Fill in the blank
A deficiency of electrons produces a ________ charge.
Name the three subatomic particles present in an atom.
What value has been given to the mass of this reference atom ?
State two observations which show that atom is not indivisible.
Calculate the number of moles in 12.044 × 1025 atoms of phosphorus.
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which element will lose electron?
State true or false. If false, correct the statement.
An atom is electrically neutral.
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.
In all atoms of an element
Define the term ions or radicals.
In the nucleus of `""_20"Ca"^40`, there are ______
The number of atoms present in a molecule is called its ______.
