Electrons, Bonding and shapes of molecules

Question 1

The electron configuration of Br- (Br= 35 electron)

Answer 1

1s2, 2s2, 2p6, 3s2, 3p6, 3d10, 4s2, 4p6

Question 2

The electron configuration of Fe2+ (Fe= 26 electrons)

Answer 2

1s2, 2s2, 2p6, 3s2, 3p6, 3d6

Question 3

The simplified electron configuration of Cl- (Cl=17)

Answer 3

[Ne] 3s2, 3p6

Question 4

How much does lone pairs repel?

Answer 4

2.5 degrees

Question 5

Name of molecule with 2 bonded pairs

Answer 5

Linear

Question 6

Name of molecule with 3 bonded pairs

Answer 6

Trigonal planar

Question 7

Name of molecule with 4 bonded pairs

Answer 7

Tetrahedral

Question 8

Name of molecule with 5 bonded pairs

Answer 8

trigonal bipyramidal

Question 9

Name of molecule with 6 bonded pairs

Answer 9

Octahedral

Question 10

Name of molecule with 4 bonded pairs and 1 lone pair

Answer 10

Pyramidal

Question 11

Name of molecule with 4 bonded pairs and 1 lone pair

Answer 11

Non-linear

Question 12

Angle of linear

Answer 12

180

Question 13

Angle of trigonal planar

Answer 13

120

Question 14

Angle of Tetrahedral

Answer 14

104.5

Question 15

Angle of Trigonal bypyramidal

Answer 15

120 and 90

Question 16

Angle of Octahedral

Answer 16

90

Question 17

Angle of pyramidal

Answer 17

107

Question 18

Angle of non-linear

Answer 18

104.5

Question 19

What are the principals of the shape of molecules?

Answer 19

Electron repel each other, so electrons try to move as far away from each other. Bonded pairs of electrons repel each other. Lone pairs repel more than bonded pairs

Question 20

What are the principals of the shape of molecules?

Answer 20

Electron repel each other, so electrons try to move as far away from each other. Bonded pairs of electrons repel each other. Lone pairs repel more than bonded pairs

Question 21

How do you know if the structure is Giant Covalent Lattice or Simple molecular lattice?

Answer 21

Simple molecular lattice occurs when the is a molecule bonded covalently. In Giant Covalent lattic there is only one element and no set number of atoms so it is not a fixed molecule.

Question 22

What shape is AlCl4-?

Answer 22

Tetrahedral

Question 23

What shape is NH4+?

Answer 23

Tetrahedral

Question 24

What shape is H3O+

Answer 24

Pyramidal

Question 25

What shape is SO3?

Answer 25

Trigonal Planar

Question 26

Which shapes of molecules are planar?

Answer 26

Non-linear, linear, Trigonal planar

Question 27

What is planar?

Answer 27

Are 2D non are coming out or going into the page