Question

A. TICK (V) THE CORRECT CHOICE.
6 31
1. The building blocks of matter are
a) Molecules b) Atoms c) Cations d) Anions
2. An atom consists of an equal number of
a) Neutrons and Protons b) Protons and Electrons c) Neutrons and Electrons
d) Protons and Positrons
3. In Rutherford's experiment,a thin sheet of Gold foil is bombarded with
a) a-particle b) B- particle c) x-ray d) UV light
4. Electrons and the nucleus are held together by
a) Gravitational force b) Magnetic force c) Frictional force d) Electrostatic force
5. Cathode rays consists of streams of
a) Positively charged particles b) Negatively charged particle
c)Neutral particles d) None of these
6. The entire mass of an atom is concentrated inside its
a) Nucleus b) 1s" shell c)2 shell d) Outermost shell
B. FILL IN THE BLANK SPACES IN THE FOLLOWING STATEMENTS.
6 3]
1. Mass of a proton is______
2. The nucleus of an atom consists of______and.
3. Electrons revolves around the nucleus in certain definite circular paths called________
4. Maximum number of electrons can be accommodated in a given orbit is given by the________
Formula .
5. The electron in the lowest energy level is said to be in the _____
6. _______Proposed the Plum Pudding Model of an atom
​

Answer 1

Answer:

I siddhartha zl so ebb dn kcc U woo ix

Answer 2

1-(b) atom

2-(b) protons and electrons

3-()

4-(d) electrostatic force

5-(a) positive charge particles

6-(a) nucleus