metals Flashcards
where are metals found on the periodic table?
Metals are found in the centre of the periodic table and to the left and bottom of the periodic table.
what do metals form when they react?
Metals react to form positive ions.
how are atoms in metals arranged?
The atoms in metals are closely packed together in regular layers
what are the electrons able to do in metals? what does this create?
The electrons in the outer shells of metals are delocalised and are free to move throughout the metallic lattice. This creates strong metallic bonding.
what do metals have? (melting, boiling points)
Most metals have high melting and boiling points.
are metals malleable?
Metals can be bent and shaped as the layers of atoms can slide over each other.
what are alloys?
Alloys are mixtures of a metal with other elements.
why are alloys harder than pure metals?
Alloys are harder than pure metals as the layers are distorted and cannot slide.
why are metals good conductors of electricity?
the delocalised electrons move
through the structure.
why are metals good conductors of heat?
the delocalised electrons can transfer the
thermal energy.
Transition metals have ______ melting points than ________ metals and are also s______, h_____ and more d_____.
Transition metals have higher melting points than group 1 metals and are also stronger, harder and more dense.
Transition metals are ____ reactive than group 1 metals.
Transition metals are less reactive than group 1 metals.
Transition metal elements have ____ with different _______, form ________ compounds and are useful as _________.
Transition metal elements have ions with different charges, form coloured compounds
and are useful as cataylsts.
