Question

1The Ni-Cd cell delivers a potential difference of __

1. 1 V
2. 1.2 V
3. 3V
4. 4.2V

2The atomic model shown is stated by __
(1 Point)

Dalton
Rutherford
Bhor
Thomson

3Total number of protons in the atomic nucleus is the ------------
(1 Point)
Atomic mass number
Neutron number
Atomic number
Atomic weight

4The potential difference between A and B is__
(1 Point)

8V
16V
2V
10V

5The SI unit of electric current is _
(1 Point)
Newton
Columb
Amphere
Erg

6Valency of carbon is__
(1 Point)
2
4
6
3

7Isotopes have different __
(1 Point)
Mass number
Electron number
Atomic number
Proton number

8The electronic configuration of Neon is__
(1 Point)
2,8
2,8,1
2,7
2,8,8

9__is used in treatment of cancer
(1 Point)
Cobalt-60
Iodine-131
Uranium-235
Carbon 14

10__ is the innermost orbit of atom.
(1 Point)
M
N
K
L​

Answer 1

1. a) 1.2v

2. b) Dalton

3. c) Atomic number

4. c) 2 volt

5. c) Ampere

6. b) 4

7. a) Mass number

8. a) 2,8

9. b) Iodine-131

10. b) k shell