If an atom releases energy and shows a red line spectrum it has moved from:

a. n=1 to n=5

b. n=1 to n=3

c. n=2 to n=1

d. n=5 to n=1

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.

answer: i dont know the answer but this might

explanation:

l

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)