1) Which of the following numbers has three significant figures? a) 01.2 b) 2.30 X 10-4 c) 50,043 d) 300 2) Which of these examples is a homogeneous mixture? a) Soda b) Sand c) Water and dirt d) Oil and water 3) What is the correct isotope symbol for an element with 17 electrons and 20 neutrons? a) 2017Cl b) 1720Ca c) 3717Cl d) 3717Ca 4) Which experiment proved that atoms have a nucleus? a) Millikan's Oil Drop b) Rutherford's Gold Foil  c) Thomson's Cathode Ray d) Plum Pudding Model 5) What is the condensed electron configuration for iodine? a) [Xe]2p6 b) [Kr]5s24p105p5 c) [Kr]5s25p105p5 d) [Xe]2p5 6) Which of the following sets of quantum numbers is impossible? a) n=1, l=2, ml=0, ms=+1/2 b) n = 2, l=1, ml=-1, ms=-1/2 c) n=3, l=2, ml=-2, ms=1/2 d) n=2, l=0, ml=0, ms=1/2 7) Order the following elements from lowest to highest ionization energy: F, O, Al a) Al>O>F b) Al>F>O c) Al<O<F d) Al<F<O 8) Which of these elements has the largest atomic radius? P, Si, Ga a) Tie between P and Si b) Si c) P d) Ga 9) What is the name for NH4Cl? a) Ammonia Chlorine b) Nitrogen Tetrahydrogen Chloride c) Ammonium Chloride d) Nonnitrogen Tetrahydrogen Chlorine 10) What molecule will result from bonding aluminum and oxygen? a) Al2O3 b) AlO c) Al3O2 d) Al+ O- 11) Which of the following molecules doesn't have sp3 hybridization? a) CH4 b) H2O c) PH3 d) BCl3 12) Which of the following molecules can resonate? a) H2O b) NO3- c) SH2 d) ClF3 13) How many sigma bonds does this molecule have? a) 6 b) 9 c) 12 d) 16 14) Which of the following molecules forms the strongest bond (MO diagram)? C2, N2, B2, F2 a) C2 b) B2 c) F2 d) N2

Final Review (CH E-6)

από
Εκτύπωση
Ενσωμάτωση

Κατάταξη

Οπτικό στυλ

Επιλογές

Αλλαγή προτύπου

Επαναφορά αυτόματα αποθηκευμένου: ;