Question
You will need to obtain a periodic table. Tin is an example of an element that has a great number of naturally occurring isotopes. How many neutrons are in tin-119?
Responses
70
70
69
69
66
66
68
Responses
70
70
69
69
66
66
68
Answers
GPT-4o mini
To determine the number of neutrons in the isotope tin-119 (Sn-119), you can use the following formula:
\[ \text{Number of neutrons} = \text{Mass number} - \text{Atomic number} \]
The atomic number of tin (Sn) is 50, which means it has 50 protons. The mass number of tin-119 is 119.
Using the formula:
\[ \text{Number of neutrons} = 119 - 50 = 69 \]
Therefore, the number of neutrons in tin-119 is **69**.
\[ \text{Number of neutrons} = \text{Mass number} - \text{Atomic number} \]
The atomic number of tin (Sn) is 50, which means it has 50 protons. The mass number of tin-119 is 119.
Using the formula:
\[ \text{Number of neutrons} = 119 - 50 = 69 \]
Therefore, the number of neutrons in tin-119 is **69**.