Element bonding - OCR Gateway

1

What happens when sodium reacts with chlorine to form sodium chloride?

2

What type of structure is present in solid potassium chloride?

3

What is an ionic bond?

4

How is a covalent bond formed?

5

What type of elements usually form covalent bonds?

6

Phosphorus is in group 5 (IUPAC group 15). How many covalent bonds does phosphorus usually form?

7

Which of the following exists as a giant covalent structure?

8

Approximately how many carbon atoms might be joined together in a polymer molecule?

9

What kind of bonding is present in iron?

10

What happens to the outer electrons in metallic structures?