Electron - correct answer negatively charged particle; located in the space surrounding the nucleus
Proton - correct answer Positively charged particle in the nucleus of an atom
Neutron ( for non ionic atoms ) - correct...
Electron - correct answer negatively charged particle; located in the space
surrounding the nucleus
Proton - correct answer Positively charged particle in the nucleus of an atom
Neutron ( for non ionic atoms ) - correct answer neutral particle in the nucleus of an
atom
Number of electrons ( for non ionic atoms) - correct answer = number of protons =
Atomic number ( Z)
Number of protons (for non ionic atoms ) - correct answer =number of electrons=
Atomic number(Z)
Number of neutrons - correct answer mass number(A) - atomic number(Z)
Isotopes - correct answer atoms with the same number of protons ( therefore also
electrons ) but different number of NEUTRONS
Mass Spectrometer - correct answer Instrument used to identify isotopes in a
sample thanks to their mass.
Formal charges - correct answer Allows us to individuate the most likely structure to
exist
F=Valence electrons - Non bonding Val.electrons - 1/2 Bonding electrons
, The formal charges of the elements of a compound must be added and the one that is closer to 0 is the
most likely structure to be formed.
redox reaction - correct answer A chemical reaction involving the transfer of one or
more electrons from one reactant to another; also called oxidation-reduction reaction.
reducing agent - correct answer Donates electrons and becomes oxidized.
oxidizing agent - correct answer Accepts electrons and becomes reduced.
Moles - correct answer mass/molar mass
molar mass ( compounds ) - correct answer Sum of the mass of each atom in a
compound
Moles of gases - correct answer Volume/24 dm3 (=24000 cm3)=
Moles in a solution - correct answer concentration x volume(dm3)
Working out formula of a compound - correct answer 1.Find moles(
moles=mass/molar mass)
2.Find the ratio from the number of moles found
3. Put the necessary charges
Relative formula mass(RFM) - correct answer If we know the RFM of a
compound ,we can find its exact formula
Ionic compound - correct answer compound composed of positive and negative
ions
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