📝 Multiple Choice Question
General-science
Which of the following is a 's' block element?
A
Sodium
B
Carbon
C
Iron
D
Neon
Explanation
Elements located in the 's' block of the periodic table have their outermost valence electrons occupying the spherical 's' orbital. Sodium, a highly reactive alkali metal in Group 1, is an 's' block element with a single electron residing in its 3s orbital.
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