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प्रश्न
Name two particles found inside the nucleus. What are they collectively called ?
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उत्तर
Protons and Neutrons. Mass number.
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संबंधित प्रश्न
Why is it not possible to see an atom with naked eyes?
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 |
Define:- Molecule
Write the names of the elements present in the:-
Ammonia
Write the names of the elements present in the :-
Sulphuric acid
Fill in the blank
An ion with positive charge is called ______
Define: Mass number
Define: Relative atomic mass
What does an atom consist of ? Explain.
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is such a particle called ?
Fill in the blank
A charged particle is called an _____
One nm is equal to :
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which element will gain electron?
The smallest particle of matter that can exist by itself is ______.
Define the following term with an example.
Element
K: Potassium:: C: ______.
The volume occupied by 4.4 g of CO2 at S.T.P ______
Which of the following has maximum number of atoms?
An atom of Oxygen (O) and two atoms of hydrogen (H.) combine to form a molecule of ______.
