What specifically are you talking about?
Answer:
Electronegativities generally decrease from top to bottom within a group due to the larger atomic size.
Of the main group elements, fluorine has the highest electronegativity (EN= 4.0) and cesium the lowest (EN=0.79).
Explanation:
Answer:
i think it is b and a
Explanation:
because it gathers to gather but mass might change just because it it is dissolving. and phase change because it may not do anything