Chemistry Homework!!

12/6/01, 12/7/01

Read Section 6-1 and answer the following questions:

Answer questions 1-25 with one to two word answers.

1) Why are metals widely used as building materials?

2) Where are the most reactive metals found on the periodic table?

3) What are these metals called?

4) What happens when potassium is placed in water?

5) What is the appearance of the alkali metals?

6) Alkali metals have low ______________ and low _____________ points.

7) What happens when alkali metals are exposed to oxygen?

8) All alkali metals react with ___________ and _____________.

9) Where are alkali metals commonly stored?

10) Where must alkali metals be contained in order to protect them from oxygen and moisture?

11) How many valence electrons do alkali metals have?

12) How much ionization energy do alkali metals have?

13) What type of ions do alkali metals form?

14) Which alkali metals are the most reactive?

15) All alkali metals react with which other family?

16) Give two examples of the above question.

17) Which alkali metals are the most abundant on earth?

18) How are alkali metals made commercially?

19) What is the chemical structure of baking soda?

20) What is Lithium carbonate used for?

21) What are the elements of Group 2A known as?

22) Where does this term come from?

23) Alkaline earth metals have higher ________________ and ______________ points then alkali metals.

24) Do alkaline earth metals have a higher or lower ionization energy than alkali metals?

25) How many valence electrons do all alkaline earth metals have?

26) Alkaline earth metals contain ______ metal for every 2 _______________ ions.

27) How abundant are calcium and magnesium in the environment?

28) Where is magnesium recovered from?

29) What is the term for combining one metal with another?

30) What is Berylliums atomic number?