Grade 8 · Chemistry
This quiz helps revise “Chemical bonds” in Chemistry for grade 8. It has 25 questions in five categories: Outer Shell, Ions and Charges, Shared Pairs, Polarity, Crystals and Solids. Questions get harder as the points go up, from 100 to 500.
The 100- and 200-point questions are open here. The rest show only their first words, and there are no answers: all of that is in the game itself.
What are the particles in an atom’s outermost shell that take part in bonding called?
What happens to the energy of a system when its atoms form a stable chemical bond?
For most simple main-group…
In the gameWhich noble gas has…
In the gameWhich noble gas has…
In the gameAn electron moves from a metal atom to a nonmetal atom, and the charged particles attract. What type of bond forms?
A sodium atom loses one electron. What charge does the resulting particle have?
A chlorine atom gains…
In the gameHow many chloride ions…
In the gameMagnesium ions have a…
In the gameWhat type of bond forms when atoms share pairs of electrons?
How many electron pairs hold the two hydrogen atoms in H₂ together?
What is a bond…
In the gameIn O₂, the oxygen…
In the gameA methane molecule has…
In the gameWhat is an atom’s ability to attract shared electrons called?
Two identical atoms share an electron pair equally. What type of bond is this?
A shared electron pair…
In the gameIn NH₃, which atom…
In the gameWhich element attracts a…
In the game
What pictured seasoning forms cubic crystals from a compound of sodium and chlorine?
What pictured form of carbon marks paper because its layers slide apart easily?
In the pictured iodine…
In the gameThe pictured diamond contains…
In the gameSolid potassium bromide does…
In the gameAll 25 questions and the answers are in the game. Invite your class or friends with a link — guests need no account.