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Bingel [31]
1 year ago
10

Two of most unique elements on the periodic table are hydrogen and helium. What makes them so unique and removed from the other

groups on the periodic table?
a
Unlike all other elements, hydrogen and helium are gases
b
Unlike all other elements, hydrogen and helium are not considered metals
c
Unlike all other elements, hydrogen and helium only have a maximum of 2 valence electrons
d
Unlike all other elements, hydrogen and helium have very limited properties
Biology
1 answer:
solong [7]1 year ago
7 0

A. Unlike all other elements, hydrogen and helium are gases

<h3>What is special about hydrogen and helium?</h3>

Hydrogen and helium are the lightest elements in the periodic table having mass number 1 and 2 respectively. They both exist in the form of gases at room temperature. Both Hydrogen and helium are the two most common elements in the universe. Hydrogen make up about 75% of all matter present in the universe. Hydrogen belongs to the metal group but it is not metal but a gas.

So we can conclude that option A is the right answer for the given question.

Learn more about helium here: brainly.com/question/26226232

#SPJ1

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