4. Un elemento consta de dos siótopos. La abundancia de un isotopo es de 95,72% y
su masa atómica 114,9041 uma, la masa
atómica del segundo isotopo es 112,9043
uma. ¿Cuál es la masa atómica promedio
del elemento?​

Imagine that you’re getting ready to move to a new city. when people move, they are influenced by push factors and pull factors, and you have many reasons for your move. which of the following factors is an example of a pull factor? a. wanting to move because you’ve found a great new school somewhere new b. needing to move because there are not enough resources in your old hometown c. being forced to move because your old home is gone d. having to move because there are no jobs in your current hometown

How many grams of mgbr2 are needed to produce 75g or metal?

To apply in a gold the individual gold atoms are united to each other by means of a metallic bond. how would you use the gold block to determine the atomic radius of a gold atom?