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Ionic & covalent bonding Quiz


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noble gas
In group 8 of the periodic table. Has a full outer shell of electrons and is therefore unreactive
element
Susbtance that is made up of one type of atom joined together
compound
Substance composed of two or more elements that are chemically bonded together
mixture
substance that contains two or more elements that are not bonded together
electron
A subatomic particle found outside the nucleus with a negligible mass and a charge of -1
neutron
A subatomic particle found in the nucleus with an atomic mass of 1, and a charge of 0.
proton
A subatomic particle found in the nucleus with an atomic mass of 1 and a charge of +1.
atom
Smallest particle (of an element) capable of exisiting on its own that has aneutral charge
atoms neutral
same number of protons (positive charges) and electrons (negatives charges)
ionic bond
the strong electrostatic force of attraction between oppositely charged ions (atoms have been gained or lost)
covalent bond
STRONG BOND created when sharing of electrons between elements
covalent compound
has WEAK intermolecular forces of attraction between compounds so have a low melting and boiling point
positive ions
have lost an electron
negative ions
have gained an electron
ion
An atom that has lost or gained electrons and is now charged
ionic bonds between particles create
giant structures (or giant lattice)
Group 1 periodic table
alkali metals
Group 8 periodic table
noble gases
Mass number on periodic table
The total number of neutrons and protons in the nucleus of an atom.
Atomic number on periodic table
The number of protons (which is equal to thenumber of electrons)
strong electrostatic force of attraction
between negatively and positively charges ions in ionic compounds
Na+ Cl-
NaCl
simple covalent structures
H2, Cl2, H2O, CH4