This question is about elements in Period 3 of the periodic table.
Table 1 shows some properties of some elements in Period 3.
Table 1
| Element Symbol | Atomic Number | Physical State at 20 °C |
|---|---|---|
| Na | 11 | Solid |
| Mg | 12 | Solid |
| Al | 13 | Solid |
| Si | 14 | Solid |
| P | 15 | Solid |
| S | 16 | Solid |
| Ar | 18 | Gas |
Use the periodic table to answer this question.
Give the name of the element in Period 3 that is not shown in Table 1.
80 exam-style questions on Edexcel GCSE Chemistry 2.2 The periodic table, covering 2.2.1 Mendeleev's periodic table, 2.2.2 Periods, groups, metals and non-metals, and 2.2.3 Electronic configuration and position in the periodic table. Each one has a worked solution and a mark scheme showing where the marks go.