Question

The two most common isotopes of tin have atomic masses of 118 and 120.
How do atoms of these two isotopes differ?
A. One of them has two fewer electrons than the other.
B. The heavier isotope has two more protons than the lighter isotope.
C. The lighter isotope has two more neutrons than the heavier
isotope.
D. The heavier isotope has two more neutrons than the lighter
isotope.

Answer 1

Answer:

It's D!

Explanation:

Answer 2

The two most common isotopes of tin have atomic masses of 118 and 120 and have the key difference that the heavier isotope has 2 more neutrons than the lighter one.

What is Tin?

Tin is the element that has the largest number of stable isotopes, only out of the ten are potentially radioactive but have not been observed to decay.

What is the difference between Tin118 and Tin120?

We know that Tin 118 and Tin 120 are the isotopes of the tin, but the key difference between them is that the Tin 120 has two more neutrons than Tin118, therefore, the isotopic mass of the two is different as well.

Mass of Tin118 < Mass of Tin120

Therefore, from all the provided options the correct option is that the heavier isotope has two more neutrons than the lighter isotope.

Hence, the correct option is d.

Learn more about Isotopes:

https://brainly.com/question/13214440