When magnesium ion doesn't give any characteristics colour with the flame test as electronic transisitons do not give out visible light.
Answer: what do i have to do to help.. ;-; like i need instructions and why are the words coverd off black??
;-;
Explanation:
Galileo disproved the Ptolemaic theory, sanctioned for centuries by the Church, which held the Earth to be the central and principal object in the universe, about which all celestial objects orbited.
