Periodicity

Question 1

What is the s block of the periodic table

Answer 1

Group 1 & 2

Question 2

What is the p block of the periodic table

Answer 2

Groups 3, 4, 5, 6, 7, 8

Question 3

What is the d block of the periodic table

Answer 3

Transition elements

Question 4

What is the f block of the periodic table

Answer 4

The lanthanides and actinides

Question 5

What controls which block an element is in

Answer 5

Its atomic number

Question 6

How does atomic radius change along Period 3? Why?

Answer 6

It decreases along the period
More protons are being added to the nucleus so the increases change pulls electrons in closer to the nucleus

Question 7

How does first ionisation energy change along Period 3? Why?

Answer 7

Generally increases along a period as the number of protons in the nucleus increases but the electrons enter the same main level so it gets harder to remove them

Question 8

How does melting and boiling point change along Period 3? Why?

Answer 8

The metals all have high melting points. Silicons is very high due to its macromolecular structure but the rest of the non metals have very low Mps and Bps

Question 9

Why is there a drop between first ionisation energy between groups 5 & 6

Answer 9

Phosphorous is 3p3 and Sulphur is 3p4
Therefore, once of sulphurs electrons is paired up and is therefore easier to remove due to repulsion

Question 10

What is periodicity

Answer 10

Repeating trends along a period