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प्रश्न
Fill in the blank of the following statement :
All the mass of an atom is concentrated in a small region of space called the ___________.
उत्तर
All the mass of an atom is concentrated in a small region called the nucleus.
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संबंधित प्रश्न
What are the atomic numbers of elements whose outermost electrons is represented by 3p5?
Name the particles which actually determine the mass of an atom.
Fill in the blank of the following statement :
The total number of protons and neutrons in the nucleus of an atom is called its _________.
The mass number of an element is 18. It contains 7 electrons. What is the number of protons and neutrons in it? What is the atomic number of the element?
The mass number of an element is 23 and it contains 11 electrons. What is the number of protons and neutrons in it? What is the atomic number of the element?
Name or state the following:
Elements having same mass number but different atomic number
The diagram represents an isotope of hydrogen [H]. Answer the following:
Atomic no. = 1
Mass no. = 1
If an isotope of ‘H’ has mass no. = 2, how many electrons does it have.
From the symbol \[\ce{^4_2He}\] for the element helium, write down the mass number and the atomic number of the element.
The No. of electrons in the outermost shell of the atom of an inert gas ______.
The elementary particles such as protons and neutrons are collectively called ______.
