7.1 The Periodic Table Flashcards
1
Q
What is a period?
A
A row of elements with their highest energy electron in the same shell
2
Q
What is a group?
A
A column of elements which have similar chemical and physical properties and have the same number of electrons in their outermost shell
3
Q
What is periodicity?
A
The repeating trend in properties across each period in the periodic table
