Question

groups 3 - 12, 1 - 2 electrons in the outer energy level, less reactive than alkali - earth metals, shiny, good conductor of thermal energy and electrical current, high density
choose an answer
1 transition metals
2 halogens
3 alkaline earth metals
4 alkali metals

Explanation:

Transition metals are in groups 3 - 12 of the periodic table. They have 1 - 2 electrons in the outer energy level. They are less reactive than alkali - earth metals. They are shiny, good conductors of thermal energy and electrical current, and have high density. Halogens are in group 17 and are non - metals. Alkaline earth metals are in group 2. Alkali metals are in group 1.

Answer:

1. Transition metals