The number of protons, neutrons and electrons in the Elements
from A to E are given below:
Element
Protons
Neutrons
Electrons
A
17
18
17
B
20
20
20
С
18
22
18
D
17
20
17
E
9
10
10
From the above table, find a pair of isotopes and
isobars and give suitable reasons for your choice.
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Explanation:
A
17
18
17
B
20
20
20
С
18
22
18
D
17
20
17
E
9
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