Atomic Structure Flashcards
0
Q
What is the atomic number?( the smaller number)
A
The atomic number = the number of protons
Also the number of electrons in a neutral atom.
1
Q
What is an isotope?
A
Isotopes are different version of the same element. Isotopes have the same number of protons and electrons as each other but a different number of neutrons.
2
Q
What is the mass number?
A
The number of protons + the number of neutrons
3
Q
What relative charge does a proton have?
A
+1
4
Q
What is the relative mass of a proton?
A
1
5
Q
What is the relative mass of a electron?
A
1/2000
