1) period
2) the answer is D) I because they are in the same column
3) B)Ge because they are in the same column
4) A) Al because they are in the same column (share same characteristics)
5) D) they have the same number of valence electrons
6) D) nonmetals
An organism that consists of one cell
The amount of inertia an object has depends on its mass. The more mass an object has, the more inertia. Inertia is an object's tendency to do nothing.
K H D b d c m
So 10000 cm in a Km
A
The atomic number of an element is based on the number of protons in the atomic nuclei of its atoms.
