Answer:
C.
Explanation:
Option C
The information given in the question tells us about the number of electrons in an atom and also the number of shells in the atom. So, we will come to know about the atomic number, size and chemical properties of the atom. But we cannot determine atomic mass. Atomic mass is a function of number of neutrons and protons.
The answer is D. Isotopes.
Hope that helped.
Explanation:
Th electric force between charges is inversely proportional to the square of distance between them. It means,
Initial distance, r₁ = 2 cm
Final distance, r₂ = 0.25 cm
Initial force, F₁ = 1 N
We need to find the electric force between charges if the new separation of 0.25 cm. So,
So, the new force is 64 N if the separation between charges is 64 N.
Answer:
Explanation: heat of fusion