# of valence electrons Electronegativity Atomic Radius
100
3 valence electrons
How many valence electrons does Boron have?
100
Bromine
Which has a greater electronegativity? Lead or Bromine?
100
Curium
Which has a greater Atomic Radius? Curium or Sulfur?
200
2 valence electrons
How many valence electrons does Radium have?
200
Thulium
Which has greater electronegativity Seaborgium or Thulium?
200
Ytterbium
Which gas less Atomic Radius? Niobium or Ytterbium?
300
1 valence electron
How many valence electrons does Sodium have?
300
Livermorium
Which has greater electronegativity? Fermium or Livermorium?
300
Silicon
Which has less Atomic Radius? Xenon or Silicon?
400
8 valence electrons
How many valence electrons does Neon have?
400
Mercury
Which has less electronegativity? Boron or Mercury?
400
Thulium
Which has a greater Atomic Radius? Thulium or Thorium?
500
11 valence electrons
How many valence electrons would Xenon and Aluminium have in total?
500
Rhodium
Which had less electronegativity? Rhodium or Neon?
500
Gadolinium
Which has a greater Atomic Radius? Nitrogen or Gadolinium?






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