Answer:
the overall charge on the nitride anion is
(
3
−
)
.
N power 3
− →
the nitride anion
Answer:
Round to the number of significant figures in the original question. However, if you're going to proceed with further calculations using this mass, it's best not to round, as rounding will cause your answer to be less precise.
Explanation:
Answer: 
Explanation:
Multiply by t on both sides.
Now divide by I to isolate t.
Answer:
B
Explanation:
since isotopeA has bigger mass number
The nuclear reaction occurring is known as alpha-decay, and during this process, an alpha particle is released from a heavy radioactive nucleus to form a lighter more stable nucleus. The alpha particle is equivalent to a helium nucleus, which means it contains 2 protons and two neutrons (net charge of +2)
The decay equation is:
Rn → Po + α
