<span>V equals one-third times pi times r squared times h</span>
Answer:
X 86 206
Explanation:
Radioactive atoms are nuclei that can under go disintegration to emit either an alpha particle, beta particle or gamma radiation. The process could be spontaneous or stimulated.
When a radioactive atom R 88 210 emits alpha particle, it would produce an element with atomic number 86 and mass number 206 i.e X 86 206. An alpha particle is usually a helium nucleus.
⇒
+
+ energy
Answer:25.3 g of KNO₃ contain 0.25 moles.
Explanation:
The answer is the second choice
I don’t know about 1 But number 2 is AB + xH2O = AB.xH2O