HM 1045t3 SCORE Dr. Zelmer due 11/16/2017 c/7,8,9 HOME Multiple Choice Questions
ID: 562364 • Letter: H
Question
HM 1045t3 SCORE Dr. Zelmer due 11/16/2017 c/7,8,9 HOME Multiple Choice Questions 3 points each. will deduct 3 points points each. Write the letter in the space provided or the 1. What is the chemical equation that represents the property of ionization r Which element most readily gives an electron? Li C. I e. Cu 3. Which of the followingare isoelectric withargon a. IV and V b. Il and IIl C. I and II I and IV e. none of these 4. In which of the Trends of the Periodic Table" is hydrogen biggest) and iodine is the lowest (or smallest)? a. ionization potential b. metallic character d. ion size the highest (or c electron affinity e none of these 5. The element potassium s less reactive than which of the following elements? a hydrogen /lithium sodium d. Cesium 6. The properties of a metal do NOT include which of the following? a. good conductor of electricity b. solid at room temperature (except Hg) c. shiny d. forms a negative ion e. all these are properties of metals 7. Oxides of Group lA metals form which of the following upon reaction with water? strong acid b weak acid c. neutral solution d. weak base strong base Which of the following ionic compounds would have the highest lattice energy? KF b. KI 9. How many lone pairs and bonding pairs (in that order) of electrons are in a molecule of CO2? a. 2, 9 b. 4, 4 10. In the N-O bond the nitrogen atom a. is the more negative atom b. is the more positive atom c. is neutralExplanation / Answer
Ionization energy is the amount of energy required to pull and electron and make the neutral molecule to cation.
So, answer is (d)
X ---à X+ + e-
2.
Answer is (d) Li
Since electronic configuration of Li is 1s2 2s1. It has one electron in the outermost shell and hence can be removed to attain the noble gas configuration of He.
3.
Isoelectric = same number of electrons
Ar = 18
Cl- = 17 + 1 = 18
Ca2+ = 20 – 2 = 18
So, answer is (d) I and IV
5.
Answer is (b) and (c)
6.
Answer is (d) forms a negative ion.
Metals generally forms positive ions
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