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Chemistry
The document discusses two topics: an introduction to p-block elements and periodic trends in groups and periods. It defines p-block elements as those found on the right side of the periodic table from column 3A to 8A, whose valence electrons are in p orbitals. It lists some major periodic trends like electronegativity, ionization energy, atomic radius, and melting point that decrease from top to bottom in a group but increase from left to right across a period. It also compares trends in groups IA and IIA.
Chemistry
- 1. GOOD MORNING, RESPESCTED TEACHERAND MY DEAR CLASS FELLOWS .WE HOPE YOU ALL ARE DOING GREAT .
- 2. SO OUR PRESENTATION TOPICS ARE: INTRODUCTIONTO P-BLOCKELEMENT, GROUP TRENDS.
- 3. FIRST TOPIC IS: INTRODUCTIONTO P-BLOCK ELEMENT
- 5. P block elementsare on the right side of the periodic table and they includes elements from the sixth column beginning with column 3A and ending with column 8A .
- 6. Here the p-blockis coloured orange .p block elements are unified by a fact that there valance electron (outer most electron) are in p orbital
- 7. The p-block elementsenhold maximum six electrons and hence there are six columns in the p block.
- 12. Periodic trendsare specific patterns that are present in the periodic table that illustrate different aspects of a certain element, including its size and its electronic properties.
- 13. •. Major periodictrends include: • Electronegativity, • ionization energy, •electron affinity, •atomic radius, •melting point, •and metallic character.
- 14. SERIAL PROPERTY GROUPTRENDS PERIODIC TR NO: (TOP TO BOTTOM) (LEFT TO RIGH 1 2 3 4 5 6 7 8 ELECTRONNEGATIVIT Y IONIZATIONPOTENTIA L ATOMIC RADII IONIC RADII HYDRATION ENERGY ELECTRODE POTENTIAL M.P& B.P DECREASE DECREASE INCREASE INCREASE DECREASE DECREASE DECREASE INCREASE INCREASE INCREASE DECREASE DECREASE INCREASE INCREASE INCREASE DECREASE
- 15. IIA GROUP IAGROUP IA GROUP HAVE LESS E.N(ELECETRONEGATIVTY). IA GROUP HAS LESS I.P VALUE. IA GROUP HAVE LARGER ATOMICRADII. IA GROUP HAVE LARGER IONIC RADII IIA GROUP HAVE MORE E.N (ELECTRONEGATIVITY). IIA GROUP HAS MORE I.P VALUE. IIA GROUP HAVE SMALLER ATOMIC RADII. IIA GROUP HAVE SMALLER IONIC RADII.