Venus so that the sun rises in the west
Answer : Option D) 
Explanation : When a positron is getting absorbed it means it will be
so, the
will get converted;
So, the whole reaction will be;
+
---->
.
This will convert the whole element of Cu will get changed into Zn. As, it absorbs by the positron, the atomic number gets increased from 29 to 30.
Answer:
NH4
Explanation:
empirical formula is the ratio of all elements to each other. so
2:6= 1:4
that's why
N1H4 or NH4