Question

Radium decays to form radon. *x26Ra 222 Rn + He 86 This type of nuclear decay is called​

Answer 1

Alpha decay

Step-by-step explanation:

Got it right on edge

Answer 2

Answer: it's alpha decay (α)

Explanation: mass number of mother nucleus decreases by four and number of protons decreases by two. Smaller nucleus is He-4 nucleus.