Advertisements
Advertisements
प्रश्न
Define: Chemical bond
Advertisements
उत्तर
Chemical bond— A chemical bond is the binding force between two or more atoms of a molecule.
APPEARS IN
संबंधित प्रश्न
Why is it not possible to see an atom with naked eyes?
TRUE \ FALSE
Neils Bohr gave the theory to explain the arrangement of protons in an atom.
Write the names of the elements present in the:-
Glucose
Fill in the blank:
Atoms are _____
Name three non-metals/radicals which have valency -1, -2, and -3.
How is the size of an atom indicated ?
Why is it not possible to see an atom even with the most powerful microscope ?
Fill in the following blanks with suitable words :
In water, the proportion of oxygen and hydrogen is .............. by mass.
Dalton's atomic theory says that atoms are indivisible. Is this statement still valid ? Give reasons for your answer.
Match the pairs.
| Group 'A' | Group 'B' |
| a. Proton | i. Negatively charged |
| b. Electron | ii. Neutral |
| c. Neutron | iii. Positively charged |
In what respects do the three isotopes of hydrogen differ? Give their structures.
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which will form positive ion?
Draw the basic structure of an atom representing its –
- Subatomic particles
- Nucleus
- Orbits or shells.
A compound containing one atom of carbon and two atoms of oxygen is ______.
Define the following term with an example.
Element
State true or false. If false, correct the statement.
The basic unit of an element is molecule.
An element is composed of ______ atoms.
Define the term ions or radicals.
Atoms of one element can be transmuted into atoms of other elements by ______
What are the 3 most abundant atoms on the earth?
