Multiple Choice
Which family (group) on the periodic table is the most reactive overall?
4
views
4. Atoms and Elements
Periodic Table: Group Names
Struggling with Introduction to Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which group on the periodic table is generally the least reactive?
A
Halogens (Group 17)
B
Alkaline earth metals (Group 2)
C
Noble gases (Group 18)
D
Alkali metals (Group 1)
Verified step by step guidance1
Understand that reactivity in the periodic table generally depends on how easily an element can gain, lose, or share electrons to achieve a stable electron configuration.
Recall that Group 1 (Alkali metals) are highly reactive because they have one electron in their outer shell that they readily lose to form positive ions.
Recognize that Group 2 (Alkaline earth metals) are also reactive, though less so than Group 1, because they have two electrons in their outer shell that they tend to lose.
Know that Group 17 (Halogens) are very reactive nonmetals because they have seven electrons in their outer shell and tend to gain one electron to complete their octet.
Identify that Group 18 (Noble gases) are generally the least reactive because they have a full outer electron shell, making them very stable and unlikely to react under normal conditions.
5:33mWatch next
Master Periodic Table: Group Names with a bite sized video explanation from Jules
Start learningRelated Videos
Related Practice
Periodic Table: Group Names practice set
Problem sets built by lead tutorsExpert video explanations