Chemistry
Related Questions
Complete the table of trends in periodic properties by -
(a) Filling in the blanks with 'decreases' or 'increases' across a period & down a group.
(b) The reasons for the 'decrease' or 'increase' based on the criteria given.
Trend Reason for trend Periodic property Across a period Down a group in periodic property (a) Atomic size No. of shells • Nuclear charge (b) Ionization potential Increases Atomic size • Nuclear charge (c) Electron affinity Atomic size • Nuclear charge (d) Electronegativity Decreases Atomic size • Nuclear charge (e) Metallic character Atomic size • Ionisation potential State the following
(i) Physical properties of elements which exhibit periodicity
(ii) Nature of hydroxides of elements which exhibit periodicity
The noble gas having duplet arrangement of electrons.
The noble gas having an electronic configuration 2, 8, 8.