General Knowledge - General Science - Discussion

Barium is a silvery-white metal that can be found in the environment, where it exists naturally. It occurs combined with other chemicals, such as sulfur, carbon or oxygen. Ii is very light and its density is half that of iron. Barium oxidizes in air, reacts vigoroulsy with water to form the hydroxide, liberating hydrogen. Barium reacts with almost all the non-metals, forming often poisouning compounds.

Read more: http://www.lenntech.com/periodic/elements/ba.htm#ixzz16J0H2Ssy

It produces apple green flame... brilliant green produced my chromium or mg.... diwali times comes to mind !!

What about other elements ?

Chemical Element Color Produced.

Sodium yellow.

Barium green.

Strontium red.

Copper blue.

Flame test result of barium salts is green.

The correct answer is sodium.

@Kavi.

Barium is the right answer for other options see the answer @Apr.

It Gives grassy green colour in flame test. It's ns electrons are excited to higher energy levels and while returning to their ground state the energy absorbed by them are released as visible light.

Green- Barium.
Blue- Copper.
Yellow- Sodium.
Red-Lithium.
White-Magnesium.
Bright red- Strontium.

Nice information. Thanks.