Chemistry Bonding

What type of force holds the atoms together in all of the different types of bonding?

• ionic bonding

• intermolecular forces

• electrostatic forces of attraction

• electromagnetic forces

Tags

NGSS.HS-PS2-4

Define metallic bonding.

• the electrostatic force of attraction between two metals

• the electrostatic force of attraction between the positive ions and delocalised electrons

• the electrostatic force of attraction between the positive and negative ions

• the metallic bonding in a metal due to intermolecular forces

Why will group 2 metals have a higher melting point than group 1 metals?

• group 2 elements have more ionic bonding than group 1

• group 2 exhibits stronger covalent bonds between the metals

• group 2 exhibits stronger electrostatic forces of attraction between the higher charge of the ion and the delocalised electrons

• group 2 has more protons and neutrons which requires more energy to break apart

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Explain why metals can conduct electricity.

• metals have delocalised electrons that are free to move

• metals have delocalised ions that are free to move

• metals have ions that are free to move

• metals have atoms that are free to move

Tags

NGSS.HS-PS1-3

NGSS.HS-PS2-6

Why are alloys stronger than pure metals?

• alloys have lots of different elements interacting with each other

• alloys have lots of covalent bonds between the different atoms

• pure metals have metallic bonding between the different metals which is very strong

• the atoms have different sizes so the alloy has an irregular structure and the layers can't slide over each other

Why will group 2 metals be better electrical conductors than group 1 metals?

• they have twice as many delocalised electrons

• they have twice as many ions that are free to move

• they have stronger metallic bonding which helps conductivity

• they have more protons and electrons than group 1

Tags

NGSS.HS-PS1-3

Define covalent bonding.

• swapping of electrons

• a shared pair of electrons

• an electron being shared

• transfer of electrons between metals and non-metals

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What type of model is this?

• Dot and cross diagram

• Displayed formula

• Ball and stick model

• Space filling model

Tags

NGSS.MS-PS1-1

What type of model is this?

• Dot and cross diagram

• Displayed formula

• Ball and stick model

• Space filling model

Tags

NGSS.MS-PS1-1

Which of the following does not give any information about the bonding within the molecule?

• 
• 
• C₂H₆

•