connor497065 connor497065

02-06-2022
Chemistry

contestada

The parent element 42 19 K decays by beta decay. Which daughter element will
form?
O A. Ca
OB. 1 Ar
O C. C
OD. K

Respuesta :

Medunno13 Medunno13

12-06-2022

Answer: A

Explanation:

This means that the atomic number decreases by 1 but the mass remains constant, meaning the atomic number of the new element is 20. This corresponds to calcium.

Answer Link

Otras preguntas

In The Tempest, why does Ariel do as Prospero orders him? A. Prospero is very wealthy, and he pays Ariel quite well for following orders. B. Ariel t

what word matches a small amount of something like a seasoning for food

Which of the following is NOT a clue that a chemical change has occurred? a. change in color b. production of a gas c. formation of a precipitate d. change

what is 2 tenths of 1600

Pete traveled 1,380 miles in two days. The first day, he traveled 1.5 times as far as he did the second day. How many miles did he drive on the first day? A. 5

Which expression is equivalent to 4(6x + 11)

a pie was cut into 8 equal slices if Ruben ate 3/4 of the pie how many slices did he eat?

Kimmy has a certain amount of money. If she spends $12, then she has 1/5 of the original amount left. How much money did kimmy have originally

The continents began to drift apart by the end of the _______ period. A. Permian B. Neogene C. Cambrian D. Cretaceous

93 is decreased to 90