Two isotopes of element X have average atomic mass of 54 amu. Which numerical setup can be used to determine the atomic mass of naturally occurring boron? 1)80% of 50X and 20% of 55
2)20% of 50X and 80% of 55X
3)50% of 50X and 50% of 55X
4)75 of 50X and 25% of 55X

Adepositional also feature that forms where a stream enters a lake or an ocean is a

In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never

Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons