Atomic Structure
Carbohydrates
Ions
100

Draw the atom diagram for potassium (K). State how many protons, electrons and neutrons

19p, 19e, 20n

100

Explain why carbon can form four bonds with four other atoms. Draw a diagram to support your answer. 

Carbon can form four bonds with four atoms because it has 4 valence electrons and therefore has space to share four electrons with four other atoms. 

100

Draw the formation of Li2S (ionic bonding) 

Check for correct diagrams. 

200

How many protons, electrons, and neutrons does Neon have? 

10p, 10e, and 10n 
200

Explain the difference between starch and glucose. Draw a representation of starch and glucose to support your answer. 

Speed of energy supply: starch is slow release, glucose is quick release

200

How many electrons would calcium gain or lose. When it becomes an ion, what charge does it have? 

Lose 2 electrons and therefore would have a +2 charge once it becomes an ion. 

300

What is the electron arrangement for Fluorine? 

2, 7 (9e)

300
Draw a water molecule (covalent bonding) and explain why hydrogen only 1 pair of electrons while oxygen has 4 pairs. 

Hydrogen only has 1 electron. To make it stable it needs to fill its valence shell by sharing one electron with oxygen. 

Oxygen has two shells, the valence shell needs 8 electrons to be stable. Oxygen starts with 6 valence electrons and needs to share two to make it stable. 

300

Define an ion. Draw the formation of NaCl to support your answer.

Ions are formed when atoms lose or gain electrons to achieve a full outer shell. This results in the atom having a positive or negative charge. 

400

How many valence electrons does Magnesium have? Draw the atom. 

2

400

What type of bonding is in a carbohydrate (or sugar molecule). 

Describe how this type of bonding holds atoms together. 

Covalent bonding. 

They share pairs of valence electrons


400

In our energy drink, what compounds are examples of ionic bonding? 

Salts (electrolytes)

500

Name the 3 subatomic particles and describe their location and charge. 

Neutron: nucleus and neutral 

Proton: nucleus and positive

Electron: in out shells (orbiting nucleus) and negative 

500

What molecules give us energy from an energy drink? 


Carbohydrates - sugars. Ex. Starch converting to glucose

500

What type of bonding is form between salts (ex. NaCl)

Describe how this bond holds the atoms together 

Ionic bonding

Electrons are transferred from one atom to another resulting in positive and negative ions. The electrostatic attractions between the positive and negative ions hold the compound together. 

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