Which of the following is a stable element ? 29 Ca, 6 C , 16 S, 10 Ne 13Al, 2 He
Answers
Answer:
(i)
(i) 18
(i) 18
(i) 18 Ar and
(i) 18 Ar and 2
(i) 18 Ar and 2
(i) 18 Ar and 2 He are very stable are they are noble gases.
(i) 18 Ar and 2 He are very stable are they are noble gases. (ii)
(i) 18 Ar and 2 He are very stable are they are noble gases. (ii) 20
(i) 18 Ar and 2 He are very stable are they are noble gases. (ii) 20
(i) 18 Ar and 2 He are very stable are they are noble gases. (ii) 20 Ca and
(i) 18 Ar and 2 He are very stable are they are noble gases. (ii) 20 Ca and 4
(i) 18 Ar and 2 He are very stable are they are noble gases. (ii) 20 Ca and 4
(i) 18 Ar and 2 He are very stable are they are noble gases. (ii) 20 Ca and 4 Be are in group 2 since number of valence electrons in each is 2.
(i) 18 Ar and 2 He are very stable are they are noble gases. (ii) 20 Ca and 4 Be are in group 2 since number of valence electrons in each is 2.(iii)
(i) 18 Ar and 2 He are very stable are they are noble gases. (ii) 20 Ca and 4 Be are in group 2 since number of valence electrons in each is 2.(iii) 8
(i) 18 Ar and 2 He are very stable are they are noble gases. (ii) 20 Ca and 4 Be are in group 2 since number of valence electrons in each is 2.(iii) 8
(i) 18 Ar and 2 He are very stable are they are noble gases. (ii) 20 Ca and 4 Be are in group 2 since number of valence electrons in each is 2.(iii) 8 O and
(i) 18 Ar and 2 He are very stable are they are noble gases. (ii) 20 Ca and 4 Be are in group 2 since number of valence electrons in each is 2.(iii) 8 O and 16
(i) 18 Ar and 2 He are very stable are they are noble gases. (ii) 20 Ca and 4 Be are in group 2 since number of valence electrons in each is 2.(iii) 8 O and 16
(i) 18 Ar and 2 He are very stable are they are noble gases. (ii) 20 Ca and 4 Be are in group 2 since number of valence electrons in each is 2.(iii) 8 O and 16 S belongs to group 16 since number of valence electrons in each is 6.
Answer:
Solution
verified
Verified by Toppr
Correct option is B)
→Stable isotope :
13
27
Al
n/p ratio = 14/13
→Unstable isotope =
13
29
Al
n/p ratio = 16/13
Nuclides having n/p ratio greater than 1 undergoes β-emission to decrease n/p ratio in order to attain belt of stability.