Explanation:
The answer is 0.5 moles of gold
Answer:
density of a piece of metal = 7 gr/ml
Explanation:
See the file please
Adding salt increases the boiling point of the water, which would make it so the water takes longer to get to a boiling point.
Answer: Option (B) is the correct answer.
Explanation:
Both oxygen and fluorine are period 2 elements and when we move across a period then there occurs a decrease in atomic size of the atoms. Hence, the atomic radius of a neutral fluorine atom is smaller than a neutral oxygen atom.
Moreover, atomic number of fluorine is 9 and it has higher nuclear charge due to which it will cause more attraction of electrons. As a result, size of a fluorine ion will be smaller.
On the other hand, size of oxygen atom is larger and has small nuclear charge due to which attraction of electrons by its nucleus will not be strong enough. Hence, the size of
will be larger.
Thus, we can conclude that the statement
has a larger nuclear charge than
has, is correct for the fact that the
ion is smaller than the
ion.