Cambridge Secondary (7-9). Stage 9. MCE Science. Workbook - Unit 5: Chemical Bonding and Structure of Materials - Question 13

Lithium, beryllium, oxygen and fluorine are found in the second period of the Periodic Table. Use the Periodic Table to help you complete this table.

| Element | Symbol of atom | Number of outer electrons in one atom |
|---|---|---|
| lithium | ___ | ___ |
| beryllium | ___ | ___ |
| oxygen | ___ | ___ |
| fluorine | ___ | ___ |