Give the approximate bond angle for a molecule with an octahedral shape.

a) 109.5°
b) 180°
c) 120°
d) 105°
e) 90°

If a reaction has g of -136kj at 110°c, will it be spontaneous at this temperature (110°c)? yes or no

Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.

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?