Worksheet #1 phase measured he i shift radia measured mg shiftradial line in a i(δλ)| velocity in km/sec) ii line velocity in km/sec) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 0.65 0.70 0.75 0.80 0.85 0.90 0.95 1.00

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table