$200
Boiling Point - (Beryllium, Cobalt, Sulfur)
$400
Atomic mass - (Boron, Titanium, Magnesium)
$600
Electronegativity - (Selenium, Argon, Cesium)
$800
Ionization Energy - (Helium, Hydrogen, and Oxygen)
$1,000
Bond force - (Perchlorate, Acetate, Hydroxide)