natalygonzalez16 natalygonzalez16
  • 02-10-2020
  • Chemistry
contestada

What should go in the blank?
^38 19K —> _____ + ^0 -1β

A: ^38 18Ar
B: ^38 20Ca
C: ^39 20Ca
D: ^39 19K

What should go in the blank 38 19K gt 0 1β A 38 18Ar B 38 20Ca C 39 20Ca D 39 19K class=

Respuesta :

Eduard22sly
Eduard22sly Eduard22sly
  • 08-10-2020

Answer:

³⁸₂₀Ca.

Explanation:

³⁸₁₉K –> __ + ⁰₋₁β

Let ʸₓA represent the unknown.

Thus the equation above can be written as:

³⁸₁₉K –> ʸₓA + ⁰₋₁β

Thus, we can obtain the value of y an x as follow:

38 = y + 0

y = 38

19 = x + (–1)

19 = x – 1

Collect like terms

19 + 1 = x

x = 20

Thus,

ʸₓA => ³⁸₂₀A => ³⁸₂₀Ca

Therefore, the equation is:

³⁸₁₉K –> ³⁸₂₀Ca + ⁰₋₁β

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