Final answer:
Magnesium (Mg) is more electronegative than calcium (Ca), chromium (Cr) is more electronegative than germanium (Ge), and fluorine (F), being the most electronegative element in the periodic table, is more electronegative than carbon (C).
Step-by-step explanation:
In comparing the electronegativity of different atoms from your question:
- Magnesium (Mg) is more electronegative than calcium (Ca).
- Chromium (Cr) is more electronegative than germanium (Ge).
- Fluorine (F) is more electronegative than carbon (C).
These assessments are based on the general trend that electronegativity increases across the periodic table from left to right and from bottom to top. Therefore, Mg being to the right of Ca on the periodic table is more electronegative. Similarly, Cr, being closer to the top and to the right compared to Ge, has higher electronegativity. And since F is the most electronegative element, it is more so than C.