Match each electron configuration to the correct element. Use the periodic table e to determine the number of electrons
that each element has.
Drag the tiles to the correct boxes to complete the pairs.
Tiles
[Kr] 552 40/10 5p2
152 252 2p 3s 3p5
152 252 2p 3s 3p 4s? 3010
[Ar] 45 306
Pairs
zinc (Zn)
iron (Fe)
tin (Sn).
chlorine (CI)

An occluded front moves over the farmland that has been experiencing drought conditions. what change in weather will this front likely bring? a. gray skies, but no rain b. an extended period of rain c. more dry air and sunny skies d. violent, short-lived thunderstorms

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

Identify and describe the three ways that mutations affect organisms.