2 PHYSICS

1. Choose all the statements which are correct?

• Atom is the smallest particle of the matter

• Nucleus has No charge

• Neutron has the highest mass than other sub atomic particles

• Proton has positive charge

2. Which group in the periodic chart is named as HALOGENS?

• 1

• 18

• 4

• 17

3. Give some examples for Nobel gases?

4. Which is correct regarding ELEMENT?

• can be broken down into simple form by physical means

• can be broken down into simple form by chemical means

• Cannot be broken down into simpler forms

5. An element has 5 electrons, 5 protons and 4 neutrons . Find its atomic number?

• 4

• 5

• 10

• 9

6. what is ionization?

7. what is the maximum number of electrons, that the shell M can hold?

• 5

• 2

• 18

• 8

8. Explain the covalent bond?

9. Which of the following is not a property of gas state?

• Distance between atoms are very large

• No shape

• more inter molecular force

• N o volume

10. What is sublimation?