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PERIODIC TABLE – open book worksheet
Read pages 64-69 from your textbook [Chapter 3. Elements and Compounds, Section 3.1] and answer
the following questions:
1. Which property of elements did Mendeleev use to arrange elements in his periodic table?
2. State three physical properties of metals.
3. What is atomic number?
4. What are the atomic numbers and relative atomic masses of Sodium and Chlorine?
5. What are d-block elements commonly known as?
6. Name three metalloids (semi-metals) from the Periodic Table.
7. Which block (s, p, d, f) does iron belong to in the Periodic Table?
8. Which group in the Periodic Table does an element with electronic configuration 1s 2 2s2 2p5 belong
to?
9. Which blocks (s, p, d, f) in the Periodic Table contain only metals?
10. What is the similarity in the electronic configuration of Noble Gases?
11. Which block (s, p, d, f) in the Periodic Table contains hard, strong and dense metals?
12. Identify these elements:
(a) A metalloid from Group IV, used to make semiconductor (electronic) chips
(b) A Group I metal with three electron shells in its atom
(c) A non-metal with electronic configuration: 1s 2 2s2 2p3
(d) A shiny metal with 2 electrons in its outermost shell and having atomic no. between 10 and 20
(e) A metal which was known as eka-aluminium before its actual discovery
(f) A liquid halogen
(g) Most reactive non-metal
(h) Most reactive metal which is naturally available in sufficient amounts
(i) Element with atomic no. 19
(j) Element which does not belong to any group in the Periodic Table