Which describes a radioactive substance?

a. a substance whose nuclei do not stay together

b. a substance that generates radio-wave frequencies

c. a substance that forms positive or negative ions

d. a substance that forms weak molecular bonds

Using the periodic table, complete the table to describe each atom. type in your answers.a ? b? c? d? e? f?

Modern weaponry has increased the number of deaths in wars and violent conflicts.

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.