1. Periodic Table - Worksheet

Question 1 (2016 OL Q4a) The idea that matter is made from tiny indivisible (atomos) particles, was proposed in ancient times in a certain country. Name the country.(6)

Question 2 (2016 OL Q5(a)) Name the Russian scientist pictured on the right who was the first person to successfully devise a periodic table of the elements.

State one property that elements in the same group of the modern periodic table have in common. (12)

Question 3 (2015 HL Q11(a)) Mendeleev predicted the properties of the elements gallium and germanium years before either of them was discovered. Explain the basis for his predictions. (6)

Question 4 (2015 OL Q4(a)) The element with atomic number 101, Mendelevium, is named in honour of the Russian scientist Dmitri Mendeleev. What was Mendeleev’s contribution to Chemistry that led to this honour?

Question 5 (2014 OL Q4(a)) Define atomic number. (5)

Question 6 (2013 HL Q5(a)) The 350th anniversary of Robert Boyle’s discovery of the relationship between the pressure and the volume of a fixed mass of gas at constant temperature is commemorated in this Irish stamp issued in 2012. Boyle also contributed to the development of the use of the term element in Chemistry. What was his understanding of this term? (5)

Question 7 (2013 OL Q5(b)) In developing his periodic table in the 1860s, the Russian scientist, pictured on the right, arranged the elements in order of increasing relative atomic mass (atomic weight). (i) Who was the Russian scientist? (ii) What is the order used in arranging the elements in the modern periodic table? (9)

Question 8 (2012 OL Q10(c)) The following scientists all played a part in the development of our knowledge of elements.

Boyle Mendeleev Moseley The Greeks Davy

Write in your answer book the name corresponding to each of the numbers from 1 to 5 in the statements below. (25) It was thought by 1 that matter was made up of four elements: earth, air, fire and water. In the 17th century 2 defined an element as a simple substance that cannot be split into simpler substances. Early in the 19th century the elements, sodium and potassium, were isolated by 3 . Later in the 19th century the known elements were arranged in a table by 4 . In the 20th century the table of the elements was modernised as a result of the discovery of atomic number by 5 .

St.Dominic’s College Chemistry notes Page 1

1. Periodic Table - Worksheet

Question 9 (2011 HL Q5(a,b,c)) (a) Define (i) atomic number(6)

(b) Sixty-two elements were known when Mendeleev, pictured on the right, published his periodic table of the elements in 1869. What was the basis (periodic law) used by Mendeleev in arranging the elements in his periodic table? Why did Mendeleev leave spaces in his periodic table, e.g. where the element germanium occurs in the modern periodic table? In a few instances Mendeleev reversed the order of elements required by his periodic law. For example, he placed the element tellurium before the element iodine. Explain why he did this.(12)

(c) One of the most useful features of the periodic table of the elements is that it allows trends in the properties of the elements to be compared. Explain why (i) the alkali metals are all reactive, (ii) the reactivity of the alkali metals increases down the group. (9)

Question 10 (2010 HL Q4(b)) State two differences between Mendeleev’s periodic table and the modern periodic table of the elements.

Question 11 (2010 OL Q4(b)) State two differences between Mendeleev’s periodic table and the modern periodic table.

Question 12 (2009 OL Q4(b)) The Greek philosopher Empedocles (pictured on the right) suggested there were four “elements”. One of these “elements” was earth. Name two of the other three “elements” according to the Greeks.

Question 13 (2008 HL Q5) What contribution did Henry Moseley, the scientist shown in the photograph, make to the systematic arrangement of the elements in the periodic table?

Question 14 (2007 HL q4(f)) What contribution did Newlands make to the systematic arrangement of the elements known to him?

Question 15 (2006 HL Q4(a)) What contribution did Dobereiner make to the systematic arrangement of the elements?

Question 16 (2006 OL Q4(e)) Name the Russian scientist pictured on the right who proposed an early version of the periodic table in 1867.

St.Dominic’s College Chemistry notes Page 2