P1 1c atomic structure Flashcards
1
Q
what is an isotope?
A
isotopes are different forms of the same element that have the same number of protons but a different number of neutrons
2
Q
what is the relative atomic mass?
A
average mass of all the isotopes that make up an element
3
Q
how are isotopes different from the normal element?
A
different number of neutrons
4
Q
how do you calculate the relative atomic mass of an element?
A
(mass number of isotope 1 x percent abundance of isotope 1) + (mass number of isotope 2 x percent abundance of isotope 2) / 100
5
Q
what is the atomic number?
A
number of protons
6
Q
what is the mass number?
A
total number of protons and neutrons
7
Q
how do you find the electrons?
A
it will be equal to the number of protons
