A, radium-228. Alpha radiation is essentially just two protons and two neutrons leaving the atom, causing the atomic number to drop by two (since the protons left) and the mass number to drop by four (since two neutrons and protons left).
Hi there,
I believe the answer to this will be B.
Now I was crossed between B and A because the sun is nuclear but the Earth isn't but the Earth has a a lot of chemicals like the sun, and in the plants on Earth what type of energy does it have when it uses the sun as photosynthesis?
Chemicals.
So with that the answer should be chemical
Hope this is correct :)
Have a great day
Answer:
Firstly, search for proper Job by which she can earn money & from that money she can use it for her study
Explanation:
If I was in that situation, then I would do this.
I am sorry if you wouldn't like mine suggestion
Answer: 1.98 g
Explanation:
To calculate the moles :
The balanced given equation is:
According to stoichiometry :
4 moles of will produce = 2 moles of
Thus 0.22 moles of will produce= of
Mass of
Thus 1.98 g of water is produced along with 5.0 L of at STP
Answer:
The correct option is C.
Explanation:
Nuclear fusion is a radioactive reaction - radioactivity involves the nucleus of an atom NOT the electrons. Nuclear fusion is the process in which two or more light atomic nuclei combine together to form a heavier atomic nucleus with the release of large amount of energy.
An example of a nuclear fusion reaction is shown below
³₁H + ²₁H ⇒ ⁴₂He + ¹₀n + energy