physics -nuclear decay cp6 p2 Flashcards
1
Q
what is the structure of the atom
A
2.8.8.2
2
Q
brief history of the atom
A
-dalton -believed that it was solid
-jj thompson-plum pudding
-rutherford
-bohr
3
Q
how do you work out
1-mass number
2-atomic number
3-nutrons
A
1-the top number
2-the bottom number -also the number of protons and electrons
3-top number - bottom number
4
Q
what is an isotope
A
an isotope is a version of a gas meaning there is more neutrons
5
Q
what is nuclear decay
A
when the nucleus of an element is unstable it releases particles or energy to become stable -what is released is called nuclear radiation
