Processing math: 100%
Home / Aptitude Tests / Physics / An element X of an a...

An element X of an atomic number 88 and mass number 226 d...

An element X of an atomic number 88 and mass number 226 decays to form an element Z by emitting two beta particles and an alpha particle. Z is represented by

A.

22282Z

B.

22288Z

C.

22686Z

D.

22680Z

Correct answer is B

22688X (01e) + 42α + baX

a + 2 + (-2) = 88 a a = 88

b + 4 + 0 = 266 b b = 222