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प्रश्न
Fill in the blank
If an atom loses an electron, it acquires ______ a charge.
उत्तर
If an atom loses an electron, it acquires positive a charge
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
Elements combine in definite proportions to form compounds.
ANSWER IN DETAIL
How are isobars different from isotopes ?
Define: Ions
What does an atom consist of ? Explain.
Name three non-metals/radicals which have valency -1, -2, and -3.
State Dalton’s atomic theory.
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is the charge on the particle ?
What is the usual symbol for (a) and electron (b) a proton, and (c) a neutron?
State the meaning of the term – (a) atom, (b) molecule, (c) radical – with a suitable example.
The smallest particle of matter that can exist by itself is ______.
Define the following term with an example.
Compound
In all atoms of an element
An element is composed of ______ atoms.
The volume occupied by 1 mole of a diatomic gas at S.T.P is ______
Atoms of different elements having the same number of ______ are called isotones.
Give the salient features of “Modern atomic theory”.
You are provided with a fine white coloured powder which is either sugar or salt. How would you identify it without tasting?
An atom of Oxygen (O) and two atoms of hydrogen (H.) combine to form a molecule of ______.
