Observations and Analysis Table 1 Part 1: Symbol Atomic Atomic Atomic Density Melting Electrons group 1 Number Mass Radius (g/cm3) Point Period (amu) (pm) (°C) Number 2 3 Na 4 5 Rb Part 2: Symbol Atomic Atomic Atomic Density Melting Valence period 2 Number Mass Radius (g/cm3) Point Electrons Group (amu) (pm) (°C) Number 1 Li 2 13 B 14 15 16 O 17 18 Table 2 Atomic Atomic Number of Density Melting Radius (pm) Mass (amu) Valence (g/cm3) Point (°C) Part 1 Electrons Trends Across Period 2 Trends Across Period 3 Trends Across Period 4 Trends Across Period 5
Observations and Analysis Table 1 Part 1: group 1 Period Number Symbol Atomic Number Atomic Mass (amu) Atomic Radius (pm) Density (g/cm3) Melting Point (°C) Electrons 2 3 Na 4 5 Rb Part 2: period 2 Group Number Symbol Atomic Number Atomic Mass (amu) Atomic Radius (pm) Density (g/cm3) Melting Point (°C) Valence Electrons 1 Li 2 13 B 14 15 16 O 17 18 Table 2 Part 1 Atomic Radius (pm) Atomic Mass (amu) Number of Valence Electrons Density (g/cm3) Melting Point (°C) Trends Across Period 2 Trends Across Period 3 Trends Across Period 4 Trends Across Period 5
trends%20in%20periodic%20table.docx