Answer: option A. Na
Explanation: sodium is higher in the activity series of metal
Answer:
The spectroscope scale is illuminated so that one can know exactly where the wavelengths of the lines are falling along.
Answer:
It's probably to make the chemical symbols look smarter to other people.
Explanation:
Probably this is true.
The structures in the human lungs where gas exchange occurs is at the alveoli. Tiny air filled sacs at the end of bronchioles.