Chemistry, asked by zediblink292, 1 month ago

define 1.photoelectric effect. 2.radioactivity.

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Answered by NamishH2340R

1

Answer:

1. Photoelectric effect, phenomenon in which electrically charged particles are released from or within a material when it absorbs electromagnetic radiation. The effect is often defined as the ejection of electrons from a metal plate when light falls on it.

2. The emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei

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