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प्रश्न
Define: Covalent bond
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उत्तर
Covalent bond— When atoms of different non-metals neither donate nor accept electrons and hence no ions are formed, such a bond is called covalent bond.
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संबंधित प्रश्न
Why is it not possible to see an atom with naked eyes?
WRITE SHORT ANSWER
Name three inert gases.
Write the names of the elements present in the:-
Ammonia
Name two particles found inside the nucleus. What are they collectively called ?
Who originated the word ‘atom’ ?
An atom has 13 protons and 14 neutrons.
What is the atomic number of the atom ?
Name the unit in which the radius of an atom is usually expressed.
Write the relation between nanometre and metre.
Which of the following statement is correct about the atom of an element ?
How many atoms are there in exactly 12 g of carbon-12 element ? (C = 12 u)
Draw the diagrams representing the atomic structures of the following: Neon
Draw the basic structure of an atom representing its –
- Subatomic particles
- Nucleus
- Orbits or shells.
The electronic structure [configuration] of fluorine can be written as 2, 7. In a similar way give the electronic configuration of aluminium
The smaller particles found in the atom is called ______.
State true or false. If false, correct the statement.
An atom is electrically neutral.
Project.
To have an idea of what atoms are, students can be asked to construct atoms using pipe cleaners (thin metal wires-electron shells), pompoms (balls-different colours for protons and neutrons) and beads (electrons). Students will love and enjoy putting them together and they look great hanging from the ceiling in the classroom.
The volume occupied by 1 mole of a diatomic gas at S.T.P is ______
You are provided with a fine white coloured powder which is either sugar or salt. How would you identify it without tasting?
