Mass Number Flashcards
1
Q
What is the mass number?
A
The mass number is the total number of protons and neutrons in an atom.
2
Q
What is the atomic number?
A
The atomic number is the number of protons in an atom.
3
Q
What is electron configuration?
A
Electrons fill the first energy level (shell) first.
4
Q
What is the maximum number of electrons in the first shell?
A
The maximum number of electrons in the first shell is 2.
5
Q
What is the maximum number of electrons in other shells?
A
The maximum number of electrons in other shells is 8.
