haileyrussell33 haileyrussell33

07-02-2022
Chemistry

contestada

In an alternate dimension, Promethium (Pm; Z = 61) is stable. It has 3 stable isotopes
145pm (144.96 amu; 68.47%), 146Pm (145.98 amu; 21.39%), and 147Pm (146.99
amu; 10.14%). What is the average atomic mass of Promethium in this alternate
universe?

Respuesta :

jordynl1376 jordynl1376

07-02-2022

Answer do not know

Explanation multiple

Answer Link

Otras preguntas

Most meteors do not hit the earth's surface because they collide with the atmosphere causing friction with the air and thus the meteor _____________. burns up e

of the following which best explains the term gene expressions

Who were Tyler oakleys influences

Which verb form correctly completes the sentence? The traveling circus __________ to town last weekend. a. came b. comed c. will come d. come

Rezumat balada "Mesterul Manole"

$14 socks 15% discount

Which one of the following is not an accurate description of chemical reactions

One motive the Spanish had for colonizing the Americas was

Was work done on a book that fell from a desk to the floor? If so, what force was involved?

A boy is pulling a rope with a force of 300 N his friend is pulling on the rope in the opposite direction with a force of 180 N what is the net force acting on