Question
Question: Among the elements with atomic numbers 9, 12, 16 and 36 which is highly electropositive?...
Among the elements with atomic numbers 9, 12, 16 and 36 which is highly electropositive?
A
Element with atomic number 9
B
Element with atomic number 12
C
Element with atomic number 16
D
Element with atomic number 36
Answer
Element with atomic number 12
Explanation
Solution
: Z = 9; 1s22s22p5
Z = 12 ;1s22s22p63s2
Z = 16; 1s22s22p63s23p4
Z = 36; 1s22s22p63s23p63d104s24p6
Electropositivity decreases along the period while it increases going down the group.