The valency electrons are there in Chlorine, Phosphorous, Oxygen and Carbon are respectively. 7, 5, 6 and 4 7, 4, 6 and 5 4, 5, 6 and 7 7, 6, 5 and 4

What is the wavelength of light (in nm) emitted when an electron transitions fromn 3 to n = 2 in a hydrogen atom? Submit an answer to three signficant figures. nm 1 3 4 6. C 7 9. +/- x 100

What is the maximum number of electrons that a 4p orbital can hold? O 2 O 4 O None of the other given responses.

How many electrons are in the outermost shell of the Cl- ion in its ground state? 6 0 8 2

Hgggg 6 and 7 answer both questions

An electron cannot have the quantum numbers n = _______, ℓ = _______, mℓ = ______. Group of answer choices 6, 1, 0 3, 2, -2 1, 0, 0 3, 3, 1 3, 2, 1

The Auf Bau Principle, Hund's rule, and the Pauli exclusion principle are used to determine the lowest energy electron configuration of an atom, called the ground state; any other possible configuration is higher in energy, an excited state.   Which of the following valence shell electron configurations are excited states?           5s   5px   5py   5pz   4dz2   4dx2-y2   4dxy   4dyz   4dxz   (1)   ­ up, down   ­up               up­   up­   (2)   up, down­ ¯             ­   ­up   ­up   (3)   ­ ­up, down           up ­ up ­ up ­   (4)   ­ ¯up, down   ­up   ­up   ­up             1, 2, and 3 (b) 1 and 4      (c) 2 only        (d) 4 only        (e) 3 only   answer is B. i need explanation.

Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in order of decreasing size. atoms or ions in order of decreasing size atoms or ions 0. 0.0 N, F, B 2+ B, Be, B I, CI, Br O.0.0

Try Again Your answer is incorrect. • Row 3: Your list is not in the correct order. Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in order of decreasing size. atoms or ions 2+ Na, Al²+, Al F, C, Be Rb, K, Cs atoms or ions in order of decreasing size Na, Al, A₁²+ I Be, C, F Rb, K, Cs X 5

Identify the type of orbital represented by each image. The options are s orbital p orbital d orbital or f orbital