The correct answer is:
Metals
They are all alkali and transition metals
Explanation:
The periodic table includes elements clustered into groups with comparable properties. Alkali metals are reactive, soft metals with low densities. Transition metals are unreactive metals that have many have common uses. Halogens are reactive non-metals that form glowing vapors.
The tilt of Earth on it's axis
1-energy
2- force
3- force
4- force
5- energy
6- energy
The first step in the scientific methods is ask a question
