Answer:
Atomic number: 13
Electron Configuration:[NE] 3s²3p¹
Valence electron: 3
Goods or services that are required.
The tennis ball. Because of less mass
Fifty/fifty because each makes half of one whole coin.
Answer:
The purpose of the fine focus knob is to sharpen the focus quality of the image after it has been brought into focus with the coarse focus knob. Illuminator, There is an illuminator built into the base of most microscopes.