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प्रश्न
Fill in the blank
An excess of electrons produces a ________ charge.
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उत्तर
An excess of electrons produces a negative charge.
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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 |
Define:- Molecule
Define:- Radicals
Define: Mass number
Define: Relative atomic mass
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is the atomic numebr of X ?
Write the full form of IUPAC.
What are the building blocks of matter ?
Deduce from the datum provided.
| Datum | To deduce |
| \[\ce{_11^23Na}\] | Neutron number |
| \[\ce{_6^14C}\] | Mass number |
| \[\ce{_17^37 Cl}\] | Proton number |
Compare:
Chlorine atom and chloride ion, with respect to
Atomic structure
Electrical state
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which element will gain electron?
Select the correct answer to the statement given below:
The basic unit of matter is not capable of independent existence.
The smaller particles found in the atom is called ______.
Define the following term with an example.
Metal
Define the following term with an example.
Non-metal
The volume occupied by 1 mole of a diatomic gas at S.T.P is ______
The graphite refill used is pencil is made of element called ______.
______ is a substance that is made up of three oxygen atoms chemically combined.
An atom of Oxygen (O) and two atoms of hydrogen (H.) combine to form a molecule of ______.
