chapta 5

Question 1

Alkali metals

Answer 1

One of the elements of group 1 of the periodic table lithium sodium potassium Rubid sodium, calcium, and francium

Question 2

alkali earth metals

Answer 2

One of the elements of group 2 of the periodic charity burning magnesium calcium strontium, barium and radium

Question 3

Halogen

Answer 3

One of the elements of group 17 of the period table chlorine chlorine bromine idea I dine and dash 9000 combine with most metals to form salts

Question 4

Noble gas

Answer 4

One of the elements of group 18 of the periodic table helium neon argon Crypton X on and radon noble gases are unreactive