Question

cribe the shape of a 3s orbital. A) six balls B) spherical C) two balls D) eight balls E) dumbbell shaped lectrons filling up the orbitals based on the p A) Heisenberg uncertainty principle. C) Aufbau principle. up the orbitals based on the previous atom's electronic structure is known as the) B) Hund's rule. D) Pauli exclusion principle. Vhich of the following statements is TRUE? A) The larger a molecule, the faster it will effuse. B) Particles of different masses have the same average speed at a given temperature. C) For a given gas, the lower the temperature, the faster it will effuse. D) At very high pressures, a gas will occupy a larger volume than predicted by the ideal gas law. E) None of the above statements is true. When filling degenerate orbitals, electrons fill them singly first, with parallel spins. This is known as (the) A) Heisenberg uncertainty principle. B) Pauli exclusion principle. C) Hund's rule. D) Aufbau principle. Choose the statement that is TRUE. A) Outer electrons efficiently shield one another from nuclear charge. B) Valence electrons are most difficult of all electrons to remove. C) Core electrons are the easiest of all electrons to remove. D) Core electrons effectively shield outer electrons from nuclear charge. E) All of the above are true. No two electrons can have the same four quantum numbers is known as (the) A) Hund's rule. B) Heisenberg uncertainty principle C) Aufbau principle D) Pauli exclusion principle. dentify a characteristic of halogens. A) inert B) forms water in reactions C) absorbs water in reactions D) powerful oxidizing agents E) powerful reducing agents

Answer 1

& When filling degenerate sobitals, elections fill thens singly first, with perallel spow. This is know as – the Hund's Rule. According to bund's Rule – Every orbitals in a subshell issingly occupied before any orbitals is doubly occupied. All of the electrons in singly occupied orbitalis have the same spin. AS 25 21 IS 25 p Correct non incorreet • No two elections can have the same four quantum numbers is known as 6 pauli exclusion principle. • a characteristic of halogen Identify & powerful oxidising agant Explation halogen elements are strongs electronegative to element so it can easily accept electron from any alom and produce oxidise abime. and Nay & Not tu utx - Mette