Periodic Table Trends

Question 1

Radius Trends

Answer 1

Atoms get bigger down a group
atoms get smaller from left to right

Question 2

Ionization energy trends

Answer 2

decrease in energy needed as you go down a period
increase in energy needed as you go across a group

Question 3

reactivity in metal trends

Answer 3

more reactive down a group
less reactive across a perios from left to right

Question 4

Electronegativity trends

Answer 4

decrease down a group
increase across a period from left to right

Question 5

Non-metal trends

Answer 5

reactivity lower as you go down
increases as you go across

Question 6

Valence electrons across groups

Answer 6

starts at 1 valence electron in the first group and increases by 1 valence electron skipping the transition metals.
ex: 1,2,3,4,5,6,7,8 excluding Helium.

Question 7

oxidation # across groups

Answer 7

group 1 had a +1 oxidation # bc it is taking away an electron.
it goes like +1,+2,+3,+-4,-3,-2,-1,0
if you add an electron it becomes a negative oxidation #