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Dovator [93]
4 years ago
6

What happens acoss the period of the periodic table

Chemistry
1 answer:
Dima020 [189]4 years ago
7 0

Answer:

Atomic size gradually decreases from left to right across a period of elements.

Explanation:

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The hydrogen-line emission spectrum includes a line at a wavelength of 434 nm. What is the energy of this radiation? (h= 6.626 x
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