Question

Choose the right answers :

1) According to Rutherford the mass of the atom is concentrated at [ ]
A) orbit
B) orbital
C) Nucleus
D) shell

2) Electron must _____ enery to move to a lower robit [ ]
A) Absorb
B) emit
C) radiate
D) both B & C

3) The electronic structure of oxygen is ______ [ ]
A) 2, 4
B) 2, 6
C) 2, 8
D) 2, 8,2

4) Number of neutrons Z = ________ [ ] A) A - Z
B) A + Z
C) A  Z
D) A / Z

5) The rules for distribution of electrons is given by _______ [ ]
A) Bohr
B) Rutherford
C) Bury
D) Both A & C

6) Mass of electron is _____ times less than that of proton. [ ]
A) 1200
B) 1836
C) 1830
D) 1876

7) Alpha particles does nature _______ [ ]
A) electrons
B) protons
C) neutrons
D) None​

Answer 1

Answer:

1c

2a

3a

4a

5d

6b

7d

Explanation:

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