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

What happens to the atomic radius when an elctron is lost

Why is the melting of ice a physical change ?

The solid xy decomposes into gaseous x and y: xy(s) m x(g) + y(g) kp = 4.1 (at 0 °c) if the reaction is carried out in a 22.4 l container, which initial amounts of x and y will result in the formation of solid xy?