Answer:
Solar energy or infrared radiation energy
Answer:
2 in shell 1; 8 in shell 2; 8 in shell 3 and 1 in shell 4 ; 19 total protons and electrons
Explanation: Potassium is in Group 1 Period 4 and will have 1 valence electron that is 4s1 electron configuration.
Atomic mass =
39.10 = 19 protons + 20 neutrons
V used to denote speed of the wave
Is determined by the product of the wave’s frequency and wavelength.
The number of times a wave oscillates or repeats again and again multiplied by the distance.
V = 12 • 1.5 = 12 • 3/2 = 18 m/s
The speed of the wave is 18 m/s.