Atomic structure Flashcards
1
Q
What is the formula for the number of protons in an atom?
A
atomic number = number of protons
2
Q
What is the formula for the number of neutrons in an atom?
A
Number of neutrons= atomic mass numberr - atomic number
3
Q
What does the group number in an atom tell you?
A
How many electrons are in the outer shell of an atom