Question

Least reactive element of period 3​

Answer 1

Silicon is the least reactive element of the period 3.

Step-by-step explanation:

Answer 2

Silicon

Step-by-step explanation:

Silicon (symbol Si) is a group 14/period 3 metalloid. It is less reactive than its chemical analog carbon, the nonmetal directly above it in the periodic table, but more reactive than germanium, the metalloid directly below it in the table.