The element radium has a mass number of 226 and an atomic number of 88. How many neutrons does an atom of radium have?(1 point)Responses3143141381388888226

Answer 1

To find the number of neutrons in an atom, you can use the formula:

\[ \text{Number of Neutrons} = \text{Mass Number} - \text{Atomic Number} \]

For radium, the mass number is 226 and the atomic number is 88. Plugging in these values:

\[ \text{Number of Neutrons} = 226 - 88 = 138 \]

Therefore, an atom of radium has 138 neutrons.