Block (periodic table) form compounds. The first period elements in this block, however, are nonmetals. Hydrogen is highly chemically reactive, like the other s-block elements, but helium is a virtually unreactive noble gas. S-block elements are unified by the fact that their valence electrons (outermost electrons) are in the s orbital. The s-orbital is a single spherical cloud which can contain only one pair of electrons; hence, the s-block consists of only two columns in the periodic table. Elements in column 1, with a single s-orbital valence electron, are the most reactive of the block. Elements in the second column have two s-orbital
The Periodic Table (Basher book) website had some minor reservations about the book, but said it was "endearing" and succeeded in making learning chemistry easier and more fun. "The Periodic Table: Elements with Style" has also been reviewed in the "Bulletin of the Center for Children's Books" and the "Journal of Chemical Education". The Periodic Table (Basher book) The Periodic Table: Elements with Style is a 2007 children's science book created by Simon Basher and written by Adrian Dingle. It is the first book in Basher's science series, which includes "Physics: Why Matter Matters!", "Biology: Life As We Know It", "Astronomy: Out of this World!",