Author Question: Alchemist of the Middle Ages believed that ________. A) atoms are the basis of matter B) ... (Read 134 times)

brutforce · **on:** Aug 27, 2018

Alchemist of the Middle Ages believed that ________.

A) atoms are the basis of matter
B) materials can be altered to produce new molecules
C) a substance can be transformed into gold by altering its basic qualities
D) iron is strong and springy because its atoms are shaped like coils

Question 2

Light is emitted as an electron transitions from a higher energy state to a lower energy state. How long does it take for the actual transition to take place?

A) several seconds
B) several microseconds
C) several nanoseconds
D) no time at all