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Barium is an element in group 2, period 6 of the periodic table. What does this indicate about its properties?

Six Barium
Alkaline earth metals

It has 2 valence electrons and is a non reactive gas

It has 6 valence electrons and is soft and crumbly

It has 6 valence electrons and is a semimetal.

It has 2 valence electrons and is highly reactive.

1 answer

Barium (Ba) is indeed in group 2 of the periodic table, which is known as the alkaline earth metals. Being in this group indicates that it has 2 valence electrons. Additionally, barium is a highly reactive metal, not a gas or a semimetal.

Therefore, the correct interpretation of barium's properties based on its position in the periodic table is:

It has 2 valence electrons and is highly reactive.