Molecular geometry

Question 1

Molecular structure/ geometry

Answer 1

The 3 dimensional arrangement of the atoms within a molecule

Question 2

How does molecular geometry affect an atom? Give examples

Answer 2

An molecule’s molecular geometry will affect the molecule’s reactivity and polarity. This is because a defined polar molecule ( a difference in electronegativity) would be non polar due to its symmetrical shape.

Question 3

What makes a molecule’s shape linear?

Answer 3

In a linear shape, it is a straight line of 180° and it stretched out by the repealing electrons

Question 4

What makes HCl a Polar Molecule and Carbons dioxide not?

Answer 4

Even though both molecules are colvalently bonded the symmetry is where they differ. Carbon Dioxide has a symmetrical shape in which allows the electrons to be distributed evenly and the charge to be equal but in HCl, the shape is not symmetrical and therefore causes the electrons to be distributed unevenly and the overall charge to be uneven

Question 5

What causes molecules to have an angular shape?

Answer 5

The repulsion of the electrons create an angle

Question 6

What group create hybrids that tend to be angular

Answer 6

Group 6

Question 7

Why is H2O a diopole?

Answer 7

H2O is covalently bonded and it’s angular shape makes hydrogen to be a dipole. It’s electronegativity difference creates an unequal distribution of electrons and an asymmetrical distrupibuion of charge.

Question 8

What causes the shape of a molecule to be pyramidal?

Answer 8

Lone pairs repel the 3 bonding pairs

Question 9

Which group of hybrids tend to be pyramidal

Answer 9

Group 5

Question 10

Why is PH3 a Dipole?

Answer 10

It’s polar covalently (🔺EN) bonded and it’s asymmetrical shape causes the dipole.

Question 11

What causes tetrahedral shapes to be like that?

Answer 11

Four bonding pairs are repealed by each other.

Question 12

Why is Methane non polar and why is water not?

Answer 12

All though Both are polar covalently bonded the symmetry is where they differ. The tetrahedral shape is symmetrical is which would then make Methane symmetrical which results in an even distribution of electrons and symmetrical charge, however with water (H20) the angular shape is ayssemtrical resulting in an uneven distribution of charge and electrons.

Question 13

What shape is H2S?

Answer 13

Angular

Question 14

Is PH3, Non Polar or Polar?

Answer 14

It is non polar because of its polar Covalently bonded and shape.

Question 15

Is SnH4 Polar or non Polar?

Answer 15

Non polar