The quality which differentiates hydrogen from the other elements in group 1 the alkali metals is that it is a non metal and is denoted as option 3.
What is Hydrogen?
This is referred to an element with atomic number 1 and is denoted as H on the periodic table. It also falls under group one but have some differences in properties with alkali metals which fall under the same category.
It is a non metal which is why heat and electricity doesn't easily pass through it unlike other metals.
Read more about Hydrogen here https://brainly.com/question/14287666
#SPJ1
