What happens when the North Pole of one bar magnet is near the south Pole of another bar magnet? A. Both attraction and repulsion
B. neither attraction nor repulsion
C. attraction
D. repulsion

Why do sodium and neon have vastly different chemical and physical properties despite having similar atomic masses?

If the element whose electric configuration ends in the d sublevel, the element is calssified as? a. inner transition b. noble gases c. representative d. transition

The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?