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Tardigrade
Question
Chemistry
Which is the best description of an alpha particle?
Q. Which is the best description of an alpha particle?
128
143
Structure of Atom
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A
Charge
+
2
; mass of
4
am
u
; high penetrating power
B
Charge
+
2
;mass of
4
am
u
;low penetrating power
C
Charge
−
1
; mass of
0
am
u
;medium penetrating power
D
Charge 0 ; mass of
0
am
u
,no penetrating power
Solution:
(
2
H
e
4
)
2
+
α
−
particles have low penetrating power. It is positively
(
+
2
)
charged helium nucleus