1. CP Chemistry Mid Term Review

2. What midterm grade do you expect? (be honest!) 1.A 2.B 3.C 4.D 5.F Response Grid

3. 1.Bohr 2.Thomson 3.Dalton 4.Avogadro The Atomic Theory of Matter was conceived by…

4. During Rutherford’s experiments, most of the particles… 1. Bounced back 2.Went straight through the foil 3.Were absorbed by the foil 4.Reacted with the foil

5. Which part of the atom is about 1/2000 the mass of a Hydrogen atom? 1.Electron 2.Neutron 3.Proton 4.nucleus

6. Protons within the nucleus are attracted to each other by… 1.Opposite charges 2.Their energy levels 3.Electron repulsion 4.Strong nuclear forces

7. The most common isotope of hydrogen has… 1.No neutrons 2.One neutron 3.Two neutrons 4.Three neutrons

8. The total number of protons and neutrons in the nucleus of an atom is the… 1.Atomic number 2.Avogadro number 3.Mass number 4.Average atomic mass

9. As the atomic number increases, the number of electrons in a neutral atom… 1.Increases 2.Decreases 3.Remains the same 4.Doubles

10. How The Class Compares… 500B 450F 366.67D 363.33C

11. Atoms of the same element can differ in… 1.Chemical Properties 2.Mass Number 3.Atomic Number 4.Number of protons and electrtons

12. The standard for determining atomic mass is… 1.H-1 atom 2.O-16 atom 3.C-14 atom 4.C-12 atom

13. The mass of 1 mol of chromium (atomic mass 51.996 amu) is… 1.12 g. 2.198 g. 3.51.996 g. 4.6.02 x 10 23 g.

14. Visible light, X-rays, IR and radio waves all have the same… 1.Energy 2.Wavelength 3.Frequency 4.Speed

15. The distance between two successive peaks on adjacent waves: 1.Frequency 2.Wavelength 3.Velocity 4.Energy

16. The energy of a photon is related to its… 1.Mass 2.Speed 3.Size 4.Frequency

17. How many orientations can an s orbital have about the nucleus? 1.1 2.2 3.3 4.5

18. 1.1 2.3 3.5 4.7 The number of orbitals in the d sublevel is… 0 of 30 Countdown 10

19. If the third main energy level contains 15 electrons, how many more could it possibly hold? 1.0 2.1 3.3 4.17

20. How The Class Compares… 970B 950F 920C 816.67D

21. The statement that an electron occupies the lowest energy orbital available is which rule? 1.Hund 2.Aufbau 3.Pauli 4.Bohr

22. Mendeleev did not always list elements in his periodic table in order of increasing atomic mass because he grouped together elements with similar… 1.properties. 2.atomic numbers. 3.densities. 4.colors.

23. Argon, Krypton and Xenon are all… 1.Alkaline earth metals 2.Actinides 3.Noble gases 4.Transition metals

24. Which block do the actinide elements belong to? 1.d block 2.s block 3.p block 4.f block

25. The energy required to remove an electron from an atom is its… 1.Ionization energy 2.Electron affinity 3.Electronegativity 4.Electron energy

26. For each successive electron removed from an atom, the ionization energy… 1.increases. 2.decreases. 3.remains the same. 4.shows no pattern.

27. If two covalently bonded atoms are identical, the bond is… 1.Nonpolar 2.Polar 3.Ionic 4.Dipole

28. The ions in most ionic compounds are organized into a… 1.Molecule 2.Lewis structure 3.Polyatomic ion 4.Crystal

29. How The Class Compares… 1503.9 3 B 1408.3 3 C 1266.6 7 D 1200F

30. If the lattice energy of compound A is greater than that of compound B… 1.compound A is not an ionic compound. 2.the bonds in compound A are stronger than the bonds in compound B. 3.compound B is probably a gas. 4.compound A has larger crystals than compound B.

31. Compared with molecular bonds, the strength of intermolecular forces is: 1.Weaker 2.Stronger 3.About the same 4.Comparable

32. Name the compound SO 3 : 1.Silver oxide 2.Silver trioxide 3.Sulfur trioxide 4.Sodium trioxide

33. The molar mass of MgI 2 is the sum of the masses of… 1.1 mol of Mg and 2 mol of I. 2.1 mol of Mg and 1 mol of I. 3.1 atom of Mg and 2 atoms of I. 4.1 atom of Mg and 1 atom of I.

34. Forces holding particles together are strongest in: 1.Solids 2.Liquids 3.Gases 4.Plasma

35. Alpha particles are… 1.Electrons 2.Protons 3.Electromagnetic waves 4.Helium nuclei

36. The group of soft, silvery, reactive metals, all of which have one electron in an s orbital, is known as the… 1.alkaline-earth metals. 2.transition metals. 3.alkali metals. 4.metalloids.

37. How The Class Compares… 1896.7 9 B 1733.3 3 C 1683.3 3 D 1400F