. Given below are some elements of the modern periodic table: 4 be, 9 fe, 14 si, 19 k, 20 ca (i)select the element that has one electron in the outermost shell and write its electronic configuration. (ii)select two elements that belong to the same group. Give reason for you answer. (iii)select two elements that belong to the same period. Which one of the two has bigger atomic size? (cbse 2013)
Answers
Answered by
10
(I)19k 2,8,8,1
(ii)4be and 20ca....bcz they have two both have 2 electorns in outermost shell and thus belong to group 2
iii.19k and 20ca both belong to same period.... potassium has bigger atomic size
(ii)4be and 20ca....bcz they have two both have 2 electorns in outermost shell and thus belong to group 2
iii.19k and 20ca both belong to same period.... potassium has bigger atomic size
Answered by
0
Answer:
two for this answer dear because this question answer helps me today.
Explanation:
Follow me....
Similar questions