stronsium chemical?

Question

Why the stronsium colour of red?

Answer 1

Strontium gives a characteristic red in the flame tests, this is due to the spectroscopical properties related to the element itself.
Some sites explain the subject in detail, for example:
http://en.wikipedia.org/wiki/Spectroscopy

Answer 2

Indeed, strontium gives a red color when excited (flame test).

Simply, the electrons absorb this energy and bounce around out there in the outer shells. This gives off a frequency of light, in this case red.

Get an "A".

Answer 3

Stronsium