A specific type of electromagnetic radiation has a wavelength of 8.16 LaTeX: \times× 1016 nm. What is the frequency of the electromagnetic radiation in s−1? For your answer, only type in the numerical value with three significant figures. Do NOT include the unit. 1 m = 109 nm, c = 3.0 LaTeX: \times×108 m/s.

"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence,   the electronegativity (or the ability to attract electrons) is lessened."

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

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