Answer:
ELEMENT USED IN SMOKE DETECTER IS AMERICUM 241
Explanation:
Smoke detector consists of a housing with polyvinychlroide and poly styrene,alarm horn, printed circuit board, sensing chamber and mostly importanly Americum 241.
Americum 241 is a radioactive isotype.It is a stable isotype.its half life is 458 years.Americum is processed and packed with gold and silver foils.
Amo₂ is an oxide of Am241.It is mixed with gold,made to a briqutte and kept under pressure and heat over 1470 degree F
