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)
88
226
138
314
1.
138
2.
the conversion of an atom of one element into a different element through nuclear changes
3.
A nuclear equation is balanced according to mass number. A chemical equation is balanced according to the total mass before and after change
4.
82
5.
Some of the matter is converted into energy
Texass
100% @ Doing my part to help.
Unit 4 Lesson 2:
Energy Release Quick Check
1. 138
2. The conversion of an atom of one element into a different element through nuclear changes.
3. A nuclear equation is balanced according to mass number. A chemical equation is balanced according to the total mass before and after the change.
4. 82
5. Some of the matter is converted to energy.
"Doing my part to help"is 100% correct tysm!
Thank you for your help on the first question DrBob222
Which connections state are you from?
I'm from south carolina