Give 15 marks structured questions on a drawn periodic table

Here are 15 marks worth of structured questions based on a periodic table. Assume a standard periodic table is provided.

Part 1: Atomic Structure and Trends (8 marks)

1. Identify the element with the highest atomic number shown on the periodic table. (1 mark)
2. Which group contains elements that are typically unreactive gases? Name one element from this group. (2 marks)
3. Consider an element in Period 3, Group 1.
   • What is its atomic number? (1 mark)
   • How many valence electrons does it have? (1 mark)
4. Explain the general trend in atomic radius as you move from left to right across a period. (2 marks)
5. Which element is a metalloid and is located in Period 4, Group 14? (1 mark)

Part 2: Bonding and Properties (7 marks)

6. Elements in Group 2 readily form ions with a charge of +2. What is the electronic configuration of a common ion formed by an element in Group 2 (e.g., Magnesium)? (2 marks)
7. Name one alkali metal and describe its typical physical state at room temperature. (2 marks)
8. Explain why elements in Group 17 (halogens) are generally more reactive than elements in Group 1 (alkali metals). (3 marks)