Answer:
a metal
Explanation:
metals are good conductors of electricity
I'm pretty sure its D because if it's manufactured and distributed its likely not toxin or poison. a narcotic could be a controlled substance so that's why I'm leaning towards D
Explanation:
When an electron absorbs the light it jumps from its lower energy state towards the higher energy state. This known as absorption.
When an electron come backs from higher energy to lower energy level energy is released emitted out in the form of light. This is known as emission.
1) n = 3 to n = 5 ,This transition will be absorption.
2) n = 1 to n = 3 ,This transition will be absorption
3) n = 3 to n = 2 ,This transition will be emission.
4) n = 2 to n = 1 ,This transition will be emission.