Question

Make a hypothesis:

Why do you think Hydrogen is with the Group 1 elements rather than with the rest of the nonmetals directly next to Helium above Group 17?

Answer 1

First, because the elements of the periodic table are arranged in order of increasing proton numbers. Secondly, hydrogen would belong in group 1 instead of 17 because the elements of a group have the same number valence electrons. Hydrogen has one valence electron so it would best fit into group one rather than group 17 which has seven valence electrons

Answer 2

Step-by-step explanation:

Hydrogen's placement on the periodic table is a subject of debate among chemists. It's in Group 1 because it has one electron in its outermost shell, like the alkali metals. However, it's not a typical alkali metal and has some nonmetallic properties, like being a diatomic gas. Its unique position results from historical reasons and its ability to both lose and gain electrons, making it difficult to classify as a typical metal or nonmetal. Hydrogen's placement reflects its anomalous nature and the periodic table's limitations in fully capturing its properties.