The scientist that was the first to use the telescope in astronomy was Newton
The first person to discover a Periodic Table was Dmitry Mendeleyev, a Russian chemist founded the periodic table in 1869.
Dmitri Mendeleev, considering he created it.
Answer:
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Explanation:
Answer:
The effective nuclear charge for a 2nd row electron in Sulfur is +8
Explanation:
Zeff = Z (# of protons) - S (# of shielded electrons)
Since there are 8 electrons in the first and second rows combined, there are 8 shielding electrons.
The number of protons in Sulfur is 16.
Therefore,
Zeff = 16 - 8
Zeff = 8
(It's been awhile, so I am not 100% sure)
