Which of the following statements best describes p orbitals?
a dumbbell with a ring around it
a sphere around the nucleus
a four-leave clover
two lobes apposing each other
Examine the three isotopes of potassium (K) below.
potassium-41, potassium-39, potassium-40
Which of the answer choices lists these isotopes in the order of having the least amount of neutrons to having the most amount of neutrons?
potassium-41, potassium-40, potassium-39
potassium-39, potassium-41, potassium-40
potassium-41, potassium-39, potassium-40
potassium-39, potassium-40, potassium-41
You can have one p axis pointing in the x direction, one in the y direction, and one in the z direction. each of these contain two electrons, plus spin and minus spin so there can be a total of 6 p electrons at this level. I guess each two electron p would look like a dumbbell but I do not know what the ring about it means. I suppose it might indicate the level of the orbit.
All potassium atoms have the same number of protons. Therefore the atomic mass goes up with the number of neutrons 39, 40 , 41
thank you
You are welcome.
In my opinion, none of the answer choices for the p orbitals is correct.
The correct answer is "two lobes apposing each other."
To determine the number of neutrons in an isotope, you subtract the atomic number (which represents the number of protons) from the mass number (which represents the total number of protons and neutrons).
For the first question, we need to compare the mass numbers of the potassium isotopes and arrange them in order from least to greatest.
The atomic number for potassium is 19.
- Potassium-41 has a mass number of 41 (41 - 19 = 22 neutrons)
- Potassium-39 has a mass number of 39 (39 - 19 = 20 neutrons)
- Potassium-40 has a mass number of 40 (40 - 19 = 21 neutrons)
Therefore, the correct answer is "potassium-39, potassium-40, potassium-41."