The ones in highlight are answered, just need these to be verified as correct. T

Question

The ones in highlight are answered, just need these to be verified as correct. Thank You!

1) Which of the following elements has the highest ionization energy? A) Ba B) Ca C) Al D) Cl E) Ne 2) Which of the following atoms is the largest? A) Li B) Na C) K E) Cs 3) Lewis theory predicts that the formula for a compound between fluorine and calcium is 4) Lewis theory predicts that the formula for a compound between barium and sulfur is 5) Lewis theory predicts that the formula for a compound between potassium and sulfur is A) KS B) K2S C) KS2 D) K3S 6) What is the correct Lewis structure for water? B) :H-O-H: D) H-O-H C) H O H 7) What is the correct Lewis structure for Br2? A) Br-Br B) :Br-Br: C) Br - Br 8) What is the angle between electron groups in the linear electron geometry? A)90 B) 109.5°C) 120 D) 180° 9) What is the molecular geometry of carbon dioxide, CO2? A) bent B) linear C) tetrahedral D) trigonal pyramidal 10) The electronegativity value for Mg is 1.2 and the value for O is 3.5. Based on these values, what type of bond is expected for a compound formed between Mg and O? A) Ionic B) Nonpolar covalent C) Polar covalent

Explanation / Answer

Q1

ionizatoin energy --> energy required to strip 1 e- in order to convert it into an ion

From the list

Neon will have the FULL octect, so this is the most desired/stable configuration

therefore, this reuqires the most eneryg for ionizaiton

Q2

largest atoms form th esame family will line up from top to bottom in the periodic table

Cs is the biggest

Q3

Ca = +2

F = -1

then

Ca+2 + 2F-1 = 0

CaF2

Q4

Ba2+

S-2

Ba+2 + S-2 = 0

BaS

Q5

K+ + S-2

2K+ + S-2 = 0

K2S

Q6

A is correct, Oxygen will have 4 electrons, i.e. 2 lone pairs

Q7

none is correct,

we must show all 6 e- as valence electron

thenerast depiction will be A

Q8

if they are lienar, only 180° will be possible to form

Q9

CO2 :

O=C=O is linear, 180°

Q10

Mg = metal

O = nonmetal

typically, metal + nonmetal make ionic

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