Answer:
Potassium (K) and Lithium (Li) for the fist one i cant see the second
Explanation:
Answer:
B
Explanation:
i hope this help but if it didn't tell me.
When you heat an atom, some of its electrons are "excited* to higher energy levels. When an electron drops from one level to a lower energy level, it emits a quantum of energy. ... The different mix of energy differences for each atom produces different colours. Each metal gives a characteristic flame emission spectrum.