One because Potassium is in the first column on the periodic table. Any element in the first column on the periodic table has one valence electron in their outer shell.
Answer:
C. n = 6 → n = 2 Violet
D. n = 5 → n = 2 Blue
A. n = 4 → n = 2 Green
B. n = 3 → n = 2 Red
Explanation:
The transitions involved are all to energy level n=2 from higher energy levels. The energy of the emission line correspondingly will reflect a higher energy the greater n is and the color of the emission spectra line will likewise correspond to higher energy. Since the energy of the colors given follow the sequence:
<h3>
Eviolet ⇒ E blue ⇒ Egreen ⇒ E red</h3><h3> 6 to 2 5 to 2 4 to 2 3 to 2</h3>
Remember that the the energy and the frequency of the visible colors is greatest for violet and lowest for red. That is why we refer to ultraviolet light being highly energetic ( sunburn) and infrared gogles which are used for low energy night vision ( the ultra and infra mean beyond visible spectrum)
I believe that you gain a day
Answer:
(a) Rate = k[A][C]²
(b) If [A] is doubled, then the rate of reaction will be doubled as well.
Explanation:
(a) The rate is equal to the multiplication of a constant and the concentrations of all reactants, each to the power of their order.
Rate = k[A]¹[B]⁰[C]² = k[A][C]²
(b) Looking at the previous equation we can see that <em>if [A] is doubled, then the rate of reaction will be doubled as well</em>.
