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प्रश्न
Draw the basic structure of an atom representing its –
- Subatomic particles
- Nucleus
- Orbits or shells.
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उत्तर
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संबंधित प्रश्न
If bromine atom is available in the form of, say, two isotopes `""_35^79Br (49.7%)" and """_35^81Br (50.3%)`, calculate the average atomic mass of bromine atom.
ANSWER IN DETAIL
State the postulates of the Dalton’s atomic theory.
Write the names of the elements present in the:-
Glucose
Define: Ions
Define: Mass number
Name the particles which revolve around the nucleus.
Define: Covalent bond
Define: An Atom:
Fill in the blank
A charged particle is called an _____
Fill in the blank
An _______ is electrically neutral.
The electronic configuration of an element Z is 2, 8, 8.
(a) What is the atomic number of the element?
(b) State whether element Z is a metal or a non-metal.
(c) What type of ion (if any) will be formed by an atom of element Z? Why?
(d) What is special about the outermost electron shell of the atom of this element?
(e) Give the name and symbol of element Z.
(f) Name the group of elements to which Z belongs.
Give brief information of three subatomic particles with reference to electrical charge, mass and location.
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
What will be the charge present of the molecule XY after chemical combination?
Select the correct answer to the statement given below:
Imaginary path around the nucleus of an atom in which electrons revolve.
State true or false. If false, correct the statement.
The basic unit of an element is molecule.
Define – Atom.
1 mole of Gold and Silver contain same number of atoms.
You are provided with a fine white coloured powder which is either sugar or salt. How would you identify it without tasting?
A small block slides down on a smooth inclined plane, starting from rest at time t = 0. Let Sn be the distance travelled by the block in the interval t = n – 1 to t = n. Then, the ratio `S_n/(S_(n + 1))` is ______.
