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प्रश्न
The electronic structure [configuration] of fluorine can be written as 2, 7. In a similar way give the electronic configuration of aluminium
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उत्तर
Electronic configuration of aluminium 13 is 2, 8, 3.
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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
Elements having a tendency to accept electrons are called metals
Define:- Molecule
Name the unit in which the radius of an atom is usually expressed.
What is an atom ? How do atoms usually exist ?
Give brief information of three subatomic particles with reference to electrical charge, mass and location.
Give scientific reason.
All the mass of an atom is concentrated in the nucleus.
State true or false. If false, correct the statement.
An atom is electrically neutral.
Name the sub-atomic particles.
Which of the following statements made by Dalton has not undergone any change?
