EL 4 - Inorganic Chemistry and the Periodic Table Flashcards
What is first ionisation enthalpy?
The enthalpy change that occurs when one mole of electrons is removed from one mole of gaseous atoms
What does the group (column) number represent in the periodic table?
The group number represents the number of electrons present in the outer shell of the atom
What does the period (row number) represent in the periodic table?
The period represents the number of electron shells in the atom
Why does first ionisation increase as we move across a period?
The number of protons in the nucleus increases which increases the nuclear charge and thus the nuclear force felt by outer electrons it therefore takes more energy to remove them
What is the formula of a nitrate ion?
NO3 -
What is the formula of a sulfate ion?
SO4 2-
What is the formula of a carbonate ion?
CO3 2-
What is the formula of a hydroxide ion?
OH -
What is the formula of an ammonium ion?
NH4 +
What is the formula of a hydrogencarbonate ion?
HCO3 -
What is the formula of a copper ion?
Cu 2+
What is the formula of a zinc ion?
Zn 2+
What is the formula of a lead ion?
Pb 2+
What is the formula of an Iron (II) ion?
Fe 2+
What is the formula of an Iron (III) ion?
Fe 3+