Trends in the Periodic Table

Question 1

What is the trend with core nuclear charge?

Answer 1

Core nuclear charge increases across periods

Question 2

What is the trend with atomic size?

Answer 2

Increases down groups due to more electron shells
Decreases left to right ->

Question 3

What is the trend with electronegativity?

Answer 3

• How strongly an atom can attract electrons to itself
  Decreases down groups due to the distance from the nucleus to the electrons
  Increases across periods because of the increase in core charge and number of protons

Question 4

What is the trend with ionisation energy?

Answer 4

Down groups, ionisation energy decreases
Across periods, ionisation increases

Question 5

What is the trend with metallic nature?

Answer 5

Down groups it increases
Across periods it decreases