A) 100 B) 86 C) 118 D) 109
A) Theoretical averages B) Predictions from reliable sources C) Experimental measurements D) Estimated guesses
A) Unstable subshells B) Empty subshells C) Valence electrons D) Subshells filled to their maximum
A) Inner configurations that are the same in each period B) Valence configurations C) Total number of electrons D) Outer shell boundaries
A) 1s2 2s2 B) 1s1 C) 1s2 D) 1s2 2s1
A) 18 B) 36 C) 10 D) 2
A) 1s2 2s2 2p4 B) 1s2 2s2 2p6 C) 1s2 2s2 2p6 3s2 D) 1s2
A) 36 B) 10 C) 54 D) 18
A) 1s2 2s2 2p6 3s1 B) 1s2 2s2 2p6 3s2 3p6 4s2 C) 1s2 2s2 2p6 D) 1s2 2s2 2p6 3s2 3p6
A) 54 B) 18 C) 36 D) 86
A) 4s2 4p6 B) 4s2 3d10 4p6 C) 3d10 4s2 D) 4s2 4p6 4d10
A) 36 B) 86 C) 118 D) 54
A) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5s2 B) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 5p6 C) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 D) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6
A) 118 B) 54 C) 86 D) 36
A) 6s2 4f14 6p6 B) 6s2 4f14 5d10 6p6 C) 5f14 6d10 7p6 D) 6s2 5d10 6p6
A) 118 B) 54 C) 86 D) 109
A) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d10 7p6 B) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 C) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 7s2 5f14 6d10 7p6 D) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 6p6 7s2
A) Solid state metals B) Neutral atoms in the gas phase C) Neutral atoms in chemical environments D) Charged ions in aqueous solution
A) Only for noble gases B) No C) Yes D) Only for the s-block
A) In the d- and f-blocks B) In the s- and p-blocks C) Only in the s-block D) Only in the p-block
A) Quite irrelevant B) Extremely crucial C) Highly reactive D) Totally unstable
A) These irregularities B) The noble gases C) The Madelung rule D) Gas phase conditions
A) Irregular d-block configurations B) Chemical environment configurations C) Experimental gas-phase configurations D) Ideal electron configurations
A) Due to nuclear charge limits B) Due to electron spin pairing C) Due to atomic mass differences D) Due to the different energies of smaller and larger shells and subshells
A) The Madelung rule B) The Aufbau principle C) Pauli's exclusion principle D) Hund's rule
A) He B) Ne C) Ha D) H
A) Ne B) Na C) N D) No
A) At B) Ar C) Ag D) As
A) Kn B) Ky C) Ke D) Kr
A) X B) Xn C) Xe D) Sd
A) Ra B) Ro C) Rd D) Rn
A) Os B) Om C) On D) Og
A) Zero energy difference B) A small range of energies C) A wide range of energies D) High excitation energy |