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
WRITE SHORT ANSWER
Define an ionic compound.
ANSWER IN DETAIL
Enlist the features of Bohr’s model of an atom. How did he correct the Rutherford’s model ?
ANSWER IN DETAIL
How are isobars different from isotopes ?
Write the names of the elements present in the:-
Glucose
Name two particles found inside the nucleus. What are they collectively called ?
What are orbits or shells ?
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is the charge on the particle ?
State two observations which show that atom is not indivisible.
What is an atom ? How do atoms usually exist ?
For the symbols H, D and T, write the subatomic particles (protons, neutrons and electrons) found in each one of them.
Define the following term:
Atom
Draw diagrams representing the atomic structures of the following:
- Sodium atom
- Chlorine ion
- Carbon atom
- Oxygen ion
The smallest particle of matter that can exist by itself is ______.
Define the following term with an example.
Metalloid
Which of the following statements made by Dalton has not undergone any change?
In all atoms of an element
Atomic models have been improved over the years. Arrange the following atomic models in the order of their chronological order
- Rutherford’s atomic model
- Thomson’s atomic model
- Bohr’s atomic model
Write any two observations which support the fact that atoms are divisible.
An atom of Oxygen (O) and two atoms of hydrogen (H.) combine to form a molecule of ______.
The first scientific theory about atoms was given by J J. Thomson.
