Advertisements
Advertisements
प्रश्न
How is the size of an atom indicated ?
Advertisements
उत्तर
The size of an atom is indicated by its radius.
APPEARS IN
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.
The average atomic mass of a sample of an element X is 16.2 u. What are the percentages of isotopes `""_8^16X" and """_8^18X` in the sample?
WRITE SHORT ANSWER
What is radioactivity?
Write the names of the elements present in the:-
Ammonia
Define: Ions
Define: Relative atomic mass
What are orbits or shells ?
Give two examples for each of ionic and covalent bond.
An atom has 13 protons and 14 neutrons.
How many electrons would be present in this atom ?
Is it possible to see atoms these days ? Explain your answer.
What is the contribution of the following in atomic structure?
Maharshi Kanada
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which element will lose electron?
Select the correct answer to the statement given below:
Imaginary path around the nucleus of an atom in which electrons revolve.
Which of the following statements made by Dalton has not undergone any change?
______ is the smallest particle of an element.
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.
Atomic models have been improved over the years. Arrange the following atomic models in the order of their chronological order
- Rutherford’s atomic model
- Thomson’s atomic model
- Bohr’s atomic model
Lead is also known as plumbum.
