Answer: Fluorine
Explanation: It belongs in the same group as Bromine
Yes it is, because lucid means characterized by clear perception.
It was empty , dark , and cold
Answer:
1mole of any substance contains 6.022x10²³atoms
2moles of Fe will contain
2x6.022x10²³atoms = 1.204x10²⁴atoms.
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Answer:
6
Explanation:
This can be calculated from a general equation from the which the energies of the various spectral lines of hydrogen shown in the image attached. The various series of hydrogen are:
Lyman, Balmer, Paschen,Bracket and Pfund series.