Chemical Bonding

Question 1

What atoms have an expansion of the octet rule?

Answer 1

third row periodic table and beyond can access d orbitals

Question 2

How does electronegativity flow through periodic table?

Answer 2

increases going up and going left to right (most significant)

Question 3

What is VSEPR theory?

Answer 3

Walence-Shell Electron-Pair Repulsion model
electron groups repel one another and stay as far apart as possible thus causing molecules to assum especific shapes

Question 4

How do you determine steric number for electron geometry?

Answer 4

number od position occupied by lone pairs and atoms

Question 5

What is shape of molecule with 2 electron groups?

Answer 5

Linear, Linear 180

Question 6

What is shape of molecule with 3 electron groups?

Answer 6

Trigonal planar, trigonal planar or bent 120/<120

Question 7

What is shape of molecule with 4 electrong groups

Answer 7

tetrahedral, tetrahedral or trigonal pyramidal or bent, 109.5/<109.5

Question 8

WHat is shape of molecule with 5 electron groups?

Answer 8

trigonal bipyramidal

Question 9

What are bond angles for molecular geometry of trigonal bipyramidal or seesaw?

Answer 9

120 equatorial
90 axial

Question 10

What is the bond angle in T-shaped (trigonal bipyramidal)?

Answer 10

<90

Question 11

WHat is the bond angle in linear (trigonal bipyramidal)?

Answer 11

180

Question 12

What is hsape of molecule with 6 ekectron groups?

Answer 12

Octahedral, octahedral or square pyramidal, or square planar, 90,<90,90

Question 13

How do double and triple bonds effect repulsion?

Answer 13

creates a larger repulsive effect