Describe how knowing the column (group) number is a "cheat code" for determining the number and types of bonds that an element can form.

Can bacteria reproduce in a way such that when you start out with two bacteria, you get five bacteria? why or why not? * a. yes, because bacteria reproduce sexually, and can produce any number of offspring, just as humans do. b. no, because bacteria grow at an exponential rate. c. no, because when bacteria reproduce, they split into two parts, and two bacteria splitting would result in four bacteria.

18. which statement about cancer is true?

Ascientific idea becomes valid when it is what?