Uranium-234 decays to lead-214 through a series of alpha decays. which of the following is the total number of alpha particles emitted in this decay series?
a. 1
b. 2
c. 5
d. 10

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride

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

How are the terms group and period used on the periodic table