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प्रश्न
Define:- Atom
उत्तर
Atom: An atom is the smallest indivisible unit of an
OR
Atom is the smallest unit of matter.
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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.
Name two particles found inside the nucleus. What are they collectively called ?
What is the maximum number of electrons present in:
1. first shell
2. second shell
3. third shell and
4. fourth shell
Give two examples for each of ionic and covalent bond.
Who originated the word ‘atom’ ?
What does the word ‘atom’ mean?
Fill in the blank
An excess of electrons produces a ________ charge.
What are the building blocks of matter ?
How is the size of an atom indicated ?
Fill in the following blanks with suitable words :
In water, the proportion of oxygen and hydrogen is .............. by mass.
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 ______.
K: Potassium:: C: ______.
An atom of an element has no electron. Will that atom have any mass or not? Can an atom exist without electron? If so then give example.
An element is composed of ______ atoms.
The volume occupied by 4.4 g of CO2 at S.T.P ______
The number of atoms present in a molecule is called its ______.
The graphite refill used is pencil is made of element called ______.
The smallest unit of an element is ______.
