2.1 flashcards
1
Q
Does a proton have a positive or negative charge
A
postive charge
2
Q
What changes the mass number
A
The difference in the number of neutrons
3
Q
Why are isotopes important in a scientific experiment
A
They show us the chemical reactions of different elements.
4
Q
Write your own definition of an isotope
A
an atom that has a different number of neutrons on the period table
5
Q
Do you change the atomic number or the mass number
A
you only change the mass number
