Answer:
7.6 days
Explanation:
Radon is a radioactive element and Radon-222 is it's most stable isotope. The half-life of Radon-222 has been found to be approximately 3.8 days.
Let, the initial amount of the Rn-222 = 1 = A
Final amount = 
= A'
We will use the following relation for calculating time elapsed in the decay
Thus,
We can write is as,
Since the base in both sides are equal, powers can also be equal and thus,
So, t = 7.6 days
Answer:
C the temperature will increase.
<span>Heterogenous mixtures are those which are seperable by physical means. These mixtures do not have uniform properties throughout the substance. For example, blood is a heterogenous mixture because it can be seperated into its components via a physical change (centrifugation). </span>
There are 2 full orbitals and 2 electrons left over.
Answer:
Delta
Explanation:
Delta is a not a type of nuclear decay. Most times, the delta sign is used to denote a change between the initial and final states of a reaction.
There are three main types of nuclear decay which are:
- Alpha decay
- Beta decay
- Gamma decay
- Alpha decay results in the formation of alpha particles.
- Beta decay produces electron like particles.
- Gamma decay produces gamma radiations.
