Question

F. Answer the following in short.
1. What are cathode rays? What is the nature of charge on cathode rays?
2. Name the three subatomic particles of an atom. Write their symbols and charges.
3. What is a proton? How does it differ from a neutron?
4. What are shells? Write the maximum number of electrons that they can accommodate.
5. How is an element symbolically represented?
6. Differentiate between the atomic number and the mass number.
7. From the symbol x, identify the element and write down its mass number and atomic number.​

Answer 1

Answer:

1 ) Ans; cathode rays consist of negatively charged particles called electrons . so the nature of charge possessed by particles of cathode rays is negative