Answer:
The correct answer is - option b) 3Li .
Explanation:
Lithium that is occurring naturally have two isotopes that are stable one with an atomic mass of 7 and the other with an atomic mass of 6 both have the same atomic number.
In question 7(atomic mass) 3 (atomic number) is given and there is only two option have 3 atomic number with 3 b) 3.Li and d) 43Li. 4 atomic mass is not naturally occurring isotopes and as option b) has a no atomic mass so it would be the correct answer.
Thus, the correct answer is - option b) 3Li .
The following that represents an isotope for Lithium is 3Li. So, the correct option is B.
An isotope may be defined as an element that possesses the same atomic number but a different mass number.
Lithium is occurring naturally with two isotopes forms that are stable in nature. One with an atomic mass of 7 and the other with an atomic mass of 6 both have the same atomic number.
Therefore, the following that represents an isotope for Lithium is 3Li.
To learn more about Isotopes, refer to the link:
https://brainly.com/question/14220416
