Advertisements
Advertisements
प्रश्न
Fill in the blanks- The number of protons in the nucleus of an atom is called its ....................
Advertisements
उत्तर
The number of protons in the nucleus of an atom is called its atomic number.
APPEARS IN
संबंधित प्रश्न
Complete the following table.
| Atomic number | Mass number | Number of Neutrons | Number of protons | Number of electrons | Name of the Atomic species |
| 9 | - | 10 | - | - | - |
| 16 | 32 | - | - | - | Sulphur |
| - | 24 | - | 12 | - | - |
| - | 2 | - | 1 | - | - |
| - | 1 | 0 | 1 | 0 | - |
What is the significance of atomic numbers in the modern Periodic Table?
Draw the atomic diagram of the following element showing the distribution of – protons, neutrons and the electrons in the various shell of the atom.
Calcium – \[\ce{^40_20Ca}\]
[The upper number represent the – mass number and the lower number represent the – atomic number e.g. calcium – mass number = 40, atomic number = 20]
The diagram represents an isotope of hydrogen [H]. Answer the following:
Atomic no. = 1
Mass no. = 1
Do isotopes have the same atomic number or the same mass number?
Draw the structure of the following atoms showing the nucleus containing – protons, neutrons and the orbits with the respective electron:
Isotopes of hydrogen [11H, 21H, 31H]
Mass No =______ + No. of Neutrons.
If element M has mass number 24 and atomic number 12, how many neutrons does its atom contain?
Compare the charge and mass of protons and electrons.
If M is the atomic mass and A is the mass number, then packing fraction is given by ______.
In which one of the following, the number of protons is greater than the number of neutrons but number of protons is less than the number of electrons?
