Chapter 7: Periodic Trends of the Elements

Question 1

what does “eka” mean?

Answer 1

• below

ex: eka-silicon=below silicon

Question 2

why do elements down a group or period have recurring patters?

Answer 2

• placement of valence electrons

- their attraction to their nucleus

Question 3

nuclear charge (Z)

Answer 3

-attractive pull of protons (in nucleus) on an electrons

Question 4

coulomb’s law

Answer 4

• as attraction increases, charge increases

- as attraction decreases, electron distance increases

Question 5

what does a high nuclear charge result in?

Answer 5

-a strong nucleus-electron attraction