Periodn
1
2
4
5
6
7
1 2 3
I→
3 11 12
Na Mg
H
3 4
Li
19 20
21
K Ca Sc
ww ==
Be
37 38 39
Rb Sr
O
56
Cs Ba La
O 92¹ U
O “Th
87
Fr Ra Ac
Question 1
–
Th
100
O 242² Pu
Do
88 89
none of these
57
56
4
NF IN NI OY
22
Ti
40
Zr
72
Hf
5
23V == 35
58
Ce
41
73
42
Nb Mo
Ta
104 105
Rf Db
6
Cr
24 25 26 27
Mn
74
W
7
43
Tc
90 91 92
Th
Pa U
Identify the missing particle in the following equation:
238 U → He + ?
75
Re
8
107
Bh
108
106
Sg
Fe Co
44 45
Ru
76
Os
Group
9
59
60
61
62
Pr Nd Pm Sm
93 94
Np
Rh
77
Ir
O
Hs Mt
10 11 12 13 14 15 16 17
28M 46 階 78 10 05
Ni Cu
109 110
Pd Ag
Ds
29
63
Eu Gd
64
80
Pt Au Hg
47
95 96
Pu Am Cm
79
111
Rg
65
Tb
30
Zn
97
Bk
48
Cd
5
B
31
Ga
49
In
OU I NO SE
TI
6 7
13 14 15
Al
112 113
Cn Nh
32
81 82
50
Sn
Z-
N
Pb
Ge As
114
FI
33
ஐச 58 ஐம்
18
Si P S CI Ar
51
Sb
83
Bi
115
Mc
DO TE w nã o co
66 67
68
69
Dy Ho Er Tm
8
O
16 17
52332
9
84
Po
116
Lv
TIE
70
Yb
FU mon 84
98 99 100 101 102
Es
No
Cf
Fm Md
34 35 36
Se
Br Kr
53
18
No 9 8 8 8
2
71
Lu
He
103
Lr
10
Ne
I Xe
54
85
86
At Rn
117
118
Ts Og
25 ptsQuestion 2
When the U-235 nucleus is struck with a neutron, the Zn-72 and Sm-160 nuclei are produced along with some neutrons. How many neutrons are emitted?
03
06
02
04
25 ptsQuestion 3
When a curium-242 nucleus is struck with an alpha particle, a neutron is produced along with new nuclide. What is this new nuclide?
californium-245
O berkelium-245
O none of these
O californium-246
berkelium-243
25 ptsn
Question 4
When the radioactive nuclide 62Zn undergoes electron capture, what is the product nuclide?
O 61 Ga
62 Ga
O 62Cu
O 61Zn
61 Cu
20 ptsQuestion 5
The radioactive nuclide, 22Na, undergoes decay by emitting a positron. What is the nuclear composition of the product nuclide?
O 11 protons and 11 neutrons
O 12 protons and 10 neutrons
O9 protons and 12 neutrons
O 10 protons and 12 neutrons
O 11 protons and 10 neutrons
20 pts
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