Yes, VITALITIES is a Scrabble word!

Letter values in Scrabble US: V 4, I 1, T 1, A 1, L 1, I 1, T 1, I 1, E 1, S 1.

Is it a valid word?

VITALITIES is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

an energetic style
a healthy capacity for vigorous activity
(biology) a hypothetical force (not physical or chemical) once thought by Henri Bergson to cause the evolution and development of organisms
the property of being able to survive and grow

Also: life force, vital force, elan vital.