AMDEC SCH 3U Unit #1 Test (Modules 1-4)

Aids Permitted: ALCHEM Periodic Table of Elements and Ions, calculator

Part A – Knowledge and Understanding [30 marks]

Multiple Choice [16]

Put a capital letter in the space beside each multiple choice question that best answers it.

  1. ____The identity of an atom as a particular element is based on how many ______it has.

a) protonsb)neutronsc)electronsd) total subatomic particles

  1. ____ An atom of Br-80 contains

a) 35 protons, 35 neutrons and 35 electronsc) 35 protons, 80 neutrons and 35 electrons

b) 35 protons, 45 neutrons and 35 electronsd) 45 protons, 35 neutrons and 45 electrons

  1. ____ The elements on the Periodic Table are organized primarily by increasing

a) atomic numberb) atomic radiusc) ionic charge d) density

  1. ____ Another name for a row of elements on the Periodic Table is a

a) familyb) groupc) periodd) radioisotope

  1. ____ The amount of energy needed to remove a valence electron from an atom is called

a) electronegativityb) electron affinityc) ionization energyd) effective nuclear charge

  1. ____ Thetwo main isotopes of lithium are: Li-6 and Li-7. These isotopes have a different number of

a) protonsb) neutronsc) total electronsd) valence electrons

  1. ____ The two main cations for platinum are Pt2+ and Pt4+. These cations have a different number of

a) valence electronsb) total electrons c)protonsd) neutrons

  1. ____ How many valence electrons does a nitrogen atom have?

a) 3b) 5c) 7d) 14

  1. ____ The valence electrons in an aluminum atom are in which energy level in a Bohr-Rutherford diagram?

a) 1b) 2c) 3d) 4

  1. ____ Which element is a classified as an halogen?

a) cesiumb) chromiumc) calciumd) chlorine

  1. ____ Which element is classified as a Alkaline metal?

a) bismuthb) berylliumc) boron d) bromine

  1. ____ The staircase on the Periodic Table separates the ______elements from the ______elements.

a) common, uncommonb) metal, non-metal c) reactive, non-reactive d) solid, gaseous

  1. ____ How many covalent bonds are formed between two nitrogen atoms?

a) 1b) 2c) 3d) 4

  1. ____Generally, metal elements form _____ and non-metals elements form _____.

a)anions, cationsb)cations, anionsc) anions, complex ionsd) cations, complex ions

  1. ____ Which of the following is an example of a complex, or polyatomic, ion?

a) H2SO4b) SO42-c) S2-d) all of these

  1. ____ The name of the S2O32- ion is

a) sulfateb) sulfur oxidec) disulfurtrioxided) thiosulfate

Short Answer [14] : Answer the following questions in the space provided.

  1. The Periodic Table of Elements is a two-dimensional array consisting of rows and columns that organize the elements based on many atomic characteristics, properties and trends.

Identify any 4 of these characteristics, properties, or trends and briefly explain how they behave in the columns of the Periodic Table in a paragraph each. [4]

18. Complete the table below to explain common properties of different types of compounds. [4]

Types of Compound / Property / Explanation
Ionic
Molecular

19. List and briefly describe the 3 types of intermolecular forces discussed in this unit. [6]

Intermolecular Force / Description/Example

Part B – Application [30 marks]

Answer the following questions on lined paper.

  1. Describe in detail what happens when an ionic bond forms between Aluminum and Sulfur. Use Lewis structures to illustrate your description. [3]
  1. Why is carbon generally not included in our study of atoms that form ions? Use picture and/or words in your response. [2]
  1. Write the formula and IUPAC name for each of the two possible compounds that could form when Copper and oxygen combine. [4]
  1. Explain how the bonding in K2O is different from the bonding in H2O despite the fact that the ratio of atoms is 1:2 in both compounds. Use Lewis structures in your explanation. [3]
  1. Provide the chemical formula for each of the following compounds. [6]

a) beryllium oxide______

b) chromium (III) sulfide______

c) calcium nitrate______

d) iron (II) sulfite______

e) zincpercarbonate______

f) disiliconhexabromide______

  1. Provide the IUPAC name for each of the following compounds. [6]

a) SrBr2______

b) H3P______

c) NaHSO3______

d) Fe(SiO3)2______

d) NH4CN______

e) IF5______

  1. Draw the Lewis Structure for each molecule given. [4]

a) PH3b) C2l2

  1. Discuss 2 ways in which some of the concepts you have learned in this unit are useful to you in everyday life. Be very specific when discussing your chosen applications and include examples where possible. [2]