Groups/Periods Flashcards
1
Q
What is a vertical column called?
A
A group
2
Q
What does it mean if elements are in the same groups?
A
They have similar properties
3
Q
What elements are included within group 1?
A
Lithium (Li)
Sodium (Na)
Potassium (K)
4
Q
What does the group number correspond to?
A
The number of electrons in the outer shell of an atom
5
Q
Give an example of this
A
Group 1 elements have one electron on their outer shell
Group 7 elements have seven electrons in their outer shell
6
Q
What is a horizontal line called?
A
A period
7
Q
Give an example of elements in the same period
A
Lithium (Li), Carbon (C) and Neon (Ne)
8
Q
What does the period number correspond to?
A
How many shells there are in an atom of a particular element
9
Q
Give an example of this
A
Elements with three shells are found in the third period
