WILL GIVE OUT BRAINLIEST..
Name the 2 elements that have the same number of valence electrons.
Name the elements that would be classified as metals.
Name the 2 elements that are in the same period.
Name the 2 elements that are in the same family.
Name the element that has the smallest atomic number.
If the atomic number of element C is 20, then what is the atomic number of element D?