mass number, atomic number, isotopes. Flashcards
1
Q
what is the mass number of an element?
A
total number of protons and neutrons in an atoms.
2
Q
what is the atomic number of an element?
A
number of protons in an atom of an element.
3
Q
how are atom represented?
A
atoms of the same element can have a different number of neutrons.
4
Q
atoms of the same element can have a different number of neutrons are known as?
A
isotopes.
