Advertisements
Advertisements
Question
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 | ___________ | ___________ | ___________ | ________ |
Advertisements
Solution
| No. of protons | No. of neutron | Mass number | Atomic number | No. of electrons | Symbol |
| 11 | 12 | 23 | 11 | 11 | Na |
APPEARS IN
RELATED QUESTIONS
The composition of the nuclei of two atomic species X and Y are given as under
| X | Y | |
| Protons | 6 | 6 |
| Neutrons | 6 | 8 |
Give the mass numbers of X and Y. What is the relation between the two species?
Write true or false for the following statement
An atom on the whole has a positive charge.
Fill in the following blanks :
| Atomic Number | Mass Number | Protons | Neutrons | Electrons | Symbol |
| 10 | 22 | _________ | _________ | _________ | _________ |
What is the significance of atomic numbers in the modern Periodic Table?
Match the atomic numbers 4,8,10,15 and 19 with each of the following:
An element which does not form ion
From the symbol \[\ce{^4_2He}\] for the element helium, write down the mass number and the atomic number of the element.
Differentiate between the following term:
Atomic number and mass number
What is atomic number?
Mass No. 27 is for the element ______.
In a neutral atom number of protons is equal to the number of neutrons.
