Std 9 Chap 1 Flashcards
1
Q
Atomic Theory
A
1807
John Dalton
2
Q
Atom
A
John Dalton
3
Q
Atom Word
A
Ostwald
Atomos greek
4
Q
Nucleus
A
Rutherford
5
Q
Proton
A
Rutherford
6
Q
Neutron
A
James Chardwick
7
Q
Electron
A
JJ Thomson
8
Q
PEN
A
RTC
9
Q
Electron weight
A
Lightest
9.1 x 10^ -31 kg
10
Q
Nuetron weight
A
Heaviest
1.6 x 10^-27 kg
11
Q
Atomic number
A
Z total number of protons
12
Q
Atomic Mass
A
Proton + Neutron
13
Q
Isotops
A
Same atomic number
Different mass number
14
Q
Duetereum
Carbon 14
Phosphorus 31
Iodine 131,cobalt 60
Uranium 235
A
Nuclear plants
Fossil age
Plants nutrient exchange tracer
Cancer, tumor treatment identification
Nuclear fuel
15
Q
Isobar
A
Same mass number different atomic number
16
Q
Plum pudding model,water melon model
A
JJ Thomson
17
Q
Planetary model,nuclear model
A
Rutherford
18
Q
Orbital model
A
Bohr model
19
Q
KLMN shells
A
2 x n^2
2 8 18 32
