Which of the following indicates the percentage of the natural occurrence of an isotope of an element on the planet? A. Atomic mass
B. Atomic mass unit
C. Natural abundance
D. Isotope

C. Natural abundance

Explanation:

The percentage of natural occurrence of an isotope of an element on the planet is the natural abundance or the geonormal abundance.

quartz

explanation:

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)