C4.1 Predicting Chemical Reactions - Glossary Flashcards
What is the definition of an alkali metal?
An element in Group 1 of the periodic table.
What is the definition of a catalyst
A substance that increases the rate of reaction, without being used up, by lowering the activation energy needed.
What is the definition of crystalline?
The structure of substances in the solid state that have particles arranged in a giant lattice,
What is the definition of density? What is it measured in?
Mass per unit volume, measured in g/cm3 or kg/m3
What is the definition of displacement?
Reaction in which a more reactive element displaces a less reactive element from its compound.
What is in Group 0?
A vertical column of elements on the far right-hand side of the periodic table, containing unreactive non-metals.
What is in Group 1?
A vertical column of elements on the far left-hand side of the periodic table, containing reactive metals.
What is in Group 7?
A vertical column of elements on the right-hand side of the periodic table, containing reactive non-metals.
What is the definition of a halide?
A compound containing a Group 7 element and one other element, usually hydrogen or a metal.
What is the definition of a halide ion?
A negative ion formed by a Group 7 element.
What is the definition of a halogen?
An element in Group 7 of the periodic table.
What is the definition of monatomic?
Existing as single atoms, such as the noble gases.
What is the definition of a noble gas?
An element in Group 0 of the periodic table.
What is the definition of reactivity?
The tendency of a substance to take part in chemical reactions.
What is the definition of a transition metal?
An element in the block of the periodic table between Groups 2 and 3.
