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प्रश्न
Fill in the following blanks in respect of an atom of an element
| No. of protons | No. of neutron | Mass number | Atomic number | No. of electrons | Symbol |
| 11 | 12 | ___________ | ___________ | ___________ | ________ |
उत्तर
| No. of protons | No. of neutron | Mass number | Atomic number | No. of electrons | Symbol |
| 11 | 12 | 23 | 11 | 11 | Na |
APPEARS IN
संबंधित प्रश्न
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 _________.
If an atom ‘A’ has mass number 35 and atomic number 17, state the number of protons, electrons and neutrons it contains.
Draw the atomic diagram of the following element showing the distribution of – protons, neutrons and the electrons in the various shell of the atom.
Carbon – \[\ce{^12_6C}\]
[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
If an isotope of ‘H’ has mass no. = 3, how many neutrons does it have.
Differentiate mass number from atomic number.
What are nucleons? How many nucleons are present in Phosphorous? Draw its structure.
Mass No =______ + No. of Neutrons.
Match the following:
| Column A | Column B | ||
| 1. | K shell | a. | 8 |
| 2. | L shell | b. | 32 |
| 3. | M shell | c. | 2 |
| 4. | N shell | d. | 18 |
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?
