Advertisements
Advertisements
प्रश्न
The atom of an element is made up of 4 protons, 5 neutrons and 4 electrons. What are its atomic number and mass number?
Advertisements
उत्तर
Atomic number = Number of protons or number of electrons = 4
Mass number = Number of protons + Number of neutrons = 4 + 5 = 9
APPEARS IN
संबंधित प्रश्न
Explain the Mass number with example.
Fill in the blank
An ion which has a positive charge is called a ..................
Multiple Choice Questions
If the atomic number of an atom is 17 and mass number is 35 then number of neutron will be
Fill in the following blanks :
| Atomic Number | Mass Number | Protons | Neutrons | Electrons | Symbol |
| 10 | 22 | _________ | _________ | _________ | _________ |
The properties of the elements are a periodic function of their __________.
Every atom has an equal number of protons and electrons. The nature of the atom is ______.
The No. of electrons in the outermost shell of the atom of an inert gas ______.
‘A’ is denoted by ______.
K and L shells can accommodate a maximum of 2 and 8 electrons respectively.
What is the relation between mass number & atomic number?
