Question

I- Answer true or false, as considered.

1- ___ According to Bohr's atomic model, electrons can jump from any level (ni) to another farther away from the nucleus (nf) losing the energy difference DE = Ei - Ef.

2- ___ For a partition that travels with the velocity of the electron, it is not possible to determine its position and velocity at the same time.

3- ___ According to the construction principle (Principle of Aubauf), when doing the electronic exercises necessary for the decreasing energy.

4 -____ The energy of electromagnetic radiation is quantized.

5- _______The frequency and wavelength of electromagnetic radiation are inversely proportional.

6 -_____ A radiation in the infrared energy region that a radiation in the ultraviolet region.

7 -____ No electromagnetic radiation is visible by humans

8- ____ All electromagnetic radiation is visible by the human eye.

9- ____ According to the frequency and wavelength of the electromagnetic radiation, so its speed varies

10- ____ It is not possible for two electrons in an orbital to possess the four equal quantum numbers

11 ___ The pressure and volume of a fixed mass of gas increase or decrease in the same direction at a constant temperature.

12- ____ The absolute temperature and the volume of a fixed mass of gas grow or decrease in the same direction if the pressure is constant.

13- ____ If, at a constant temperature, the pressure of a gas increases, its volume decreases.

14 -____ If, at constant pressure, we lower the absolute temperature of a gas, the volume of that gas decreases.

15 -____ In standard conditions (STP), the molar volume of H2 is half the molar volume of He.

Answer 1

1. false. When electron gains energy it will jump from lower orbit to higher energy orbit.

2.True. Heisenberg uncertainty principle statement

3. False. Electrons will be filled in their orbits in increasing order of energies

4.True.

5.True

6.False. Both radiation have different energies

7.False. visible range radiation can be see by colors.

8. False. Except visible radiation all other can't be seen

9.False. speed won't vary it is equal to speed of light C= frequency * wave length

10.True. paulis exclusion principle

11.False. pressure and volume are inversely proportional. Boyles law

12. True. Charles law. Temperature and volume are directly proportional

13. True. Boyles law.

14. True. Charles law

15. False. Any gas molar volume at STP is 22.4 liters