Periodic Trends

Front

Which element has the smaller atomic radius: potassium (K) or bromine (Br)?

Back

bromine (Br)

Front

Which element has the greatest ionization energy: Aluminum (Al) or Chlorine (Cl)?

Back

Chlorine (Cl)

Front

What are the vertical (up and down) columns in the Periodic Table called?

Back

groups

Front

The Modern Periodic Table of Elements is arranged by

Back

atomic number

Front

Which group of the periodic table is composed of inert (not reactive) gases? Options: alkali metals, alkaline earth metals, halogens, noble gases

Back

noble gases

Front

I am a metal

I am in group 2

I am in period 6

I am…

Options: Mo, Re, S, Ba

Back

Ba

Front

As you move down a group, atomic radius increases because - Options: you add more and more neutrons, you add more and more protons, you add more and more shells (energy levels), you add more atomic mass

Back

you add more and more shells (energy levels)

Front

Atom with the largest atomic radius in Group 18: Ar, He, Kr, Rn

Back

Rn

Front

As you move across the periodic table from left to right, the atomic radius decreases. Why?

Back

the number of protons increases, so attraction to electrons increases

Front

Atom with the largest atomic radius in Period 4 (row 4)

Back

K