5.2 Grouping the Elements

Question 1

one of the elements of Group 1 of the periodic table

Answer 1

alkali metal

Question 2

one of the elements of Group 2 of the periodic table

Answer 2

alkali-earth metal

Question 3

one of the elements of Group 18 of the periodic table ; noble gases are unreactive

Answer 3

noble gas

Question 4

one of the elements of Group 17 of the periodic table ; halogens combine with most metals to form salts

Answer 4

halogen

Question 5

metals that don’t give away their electrons as easily and are less reactive than alkali metals

Answer 5

transtion metals

Question 6

shiny, reactive metals

Answer 6

lanthanides

Question 7

radioactive, unstable element that can change into atoms of another element

Answer 7

actinides