Chemistry Year 11 Notes 〈ULTIMATE · SERIES〉

Alex had drawn two stick figures: a metal (sweating, holding a sign that said “+”) and a non-metal (smug, holding “-”). The caption read: “They fight until they attract. Then they become a compound—and chill.” Suddenly, Alex remembered: metals lose electrons (become cations, positive), non-metals gain (anions, negative). Opposites attract. Table salt isn’t magic; it’s just sodium and chlorine finishing each other’s… electron shells.

This page was a crime scene. Crossed-out numbers, tear stains, and a furious scribble: “WHY IS AVOGADRO’S NUMBER 6.02 x 10^23???” Below, in smaller handwriting: “Because it’s the number of particles in one mole. Just memorize it, idiot.” Alex laughed. He’d written that. And now he remembered: moles = mass / molar mass. n = m/M. The formula had clawed itself into his brain through sheer frustration. chemistry year 11 notes

He wrote his answer. He passed.

A sketch of two nerdy atoms sharing a single pair of glasses. Caption: “Sharing is caring.” Right. Covalent bonds share electrons. Water, oxygen, methane—all just atoms playing nice because neither wants to lose or gain. Sharing keeps them stable. Alex had drawn two stick figures: a metal