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प्रश्न
Name the sub-atomic particles.
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उत्तर
Proton, Electron, Neutrons.
APPEARS IN
संबंधित प्रश्न
MATCH THE COLUMNAS
| 1. Jpham Dalton | a. Neutrons |
| 2. Atom | b. Model of the atom |
| 3. Chadwick | c.The atomic theory of matter |
| 4. Rutherfrod | d. Positively charged |
| 5. Protons | e. Electricity neutral |
| 6. Nuclear fusion | f. Generator of electricity |
| 7.Gamma -rays | g. High penetrating power |
| h.Energy in sun |
TRUE \ FALSE
Neils Bohr gave the theory to explain the arrangement of protons in an atom.
WRITE SHORT ANSWER
What is radioactivity?
ANSWER IN DETAIL
State the postulates of the Dalton’s atomic theory.
Define:- Molecule
Write the names of the elements present in the :-
Sulphuric acid
What does an atom consist of ? Explain.
An atom has 13 protons and 14 neutrons.
What is the atomic number of the atom ?
Name the three subatomic particles present in an atom.
State two observations which show that atom is not indivisible.
What is the contribution of the following in atomic structure?
Maharshi Kanada
A compound containing one atom of carbon and two atoms of oxygen is ______.
The smaller particles found in the atom is called ______.
State true or false. If false, correct the statement.
The basic unit of an element is molecule.
Define – Atom.
Define the following term with an example.
Metalloid
Does the solubility of a substance change with temperature? Explain with the help of an example.
A sample of vitamic C is known to contain 2.58 ×1024 oxygen atoms. How many moles of oxygen atoms are present in the sample?
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
The smallest unit of an element is ______.
