Answer:
K
Explanation:
Potassium is a Period 4 Representative element, and is actually the first element of period 4.
Average speed=the slope.
Points: (0,0) and (2.34,16.34) since the position is dependent on the time.
Use the formula m=y2-y1/x2-x1 and sub in the points
M=16.34-0/2.34-0
M=16.34/2.34
M=6.98 or 7
B. No since rusting is a chemical change it does not follow the law of conservation of mass.
Melting point is dependent on the intermolecular forces which means the bonds between the molecules of bromine as it is a simple molecular structure the intermolecular bonds of bromine are weak bcz they are weak vandervaal forces thats why Bromines melting point is low..In short when intermolecular bomds are weak the M.P is lower
The scientist that developed the equation of wave mechanics is <span>Erwin Schrodinger that combined the works of Bohr and de Broglie. The electron
was a three dimensional wave circling the nucleus in a whole number of wavelengths
allowing the waveform to repeat itself as a stable standing wave (it can absorb
energy form a nearby source which is oscillating at a proper frequency)
representing the energy levels of Bohr model. He also said that Broglie’s model
was correct about the matter waves and the electrons are located in the atomic
space according to standing wave frequencies.</span>