What do all group 2 elements have in common? (2 points)

They all gain two electrons to form a stable outer energy level.

They all react easily with the noble gases.

They form covalent bonds with halogens.

They tend to form ionic bonds by losing electrons.

Each of the following compounds contains a metal that can exhibit more than one ionic charge. provide systematic names for each of these compounds. (a) cr(clo3)6 (b) mo(cn)6 (c) cr2(so3)3 (d) v(clo2)2 (e) v(cn)5 (f) os(clo2)4

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone

The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about what