OCR A-LEVEL CHEMISTRY MODULE 3 (All questions correctly solved)

PERIOD correct answers A HORIZONTAL ROW OF ELEMENTS IN THE PERIODIC TABLE. ELEMENTS SHOW TRENDS IN PROPERTIES ACROSS A PERIOD. PERIODICITY correct answers A REGULAR PERIODIC VARIATION OR PROPERTIES OF ELEMENTS WITH ATOMIC NUMBER AND POSITION IN THE PERIODIC TABLE THERMAL DECOMPOSITION correct answers THE BREAKING UP OF A CHEMICAL SUBSTANCE WITH HEAT INTO AT LEAST TWO CHEMICAL SUBSTANCES DISPLACEMENT REACTION correct answers A REACTION IN WHICH A MORE-REACTIVE ELEMENT DISPLACES A LESS-REACTIVE ELEMENT FROM AN AQEOUS SOLUTION OF THE LATTER'S IONS. DISPROPORTIONATION correct answers THE OXIDATION AND REDUCTION OF THE SAME ELEMENT IN A REDOX REACTION PERCIPITATION REACTION correct answers THE FORMATION OF A SOLID FROM A SOLUTION DURING A CHEMICAL REACTION. PRECIPITATES ARE OFTEN FORMED HENTWO AQUEOUS SOLUTIONS ARE MIXED TOGETHER. FIRST IONISATION ENERGY OF AN ELEMENT correct answers THE ENERGY REQUIRED TO REMOVE ONE ELECTRON FROM EACH ATOM IN ONE MOLE OF GASEOUS ATOMS TO FORM ONE MOLE OF GASEOUS 1+ IONS. ELECTRON SHIELDING correct answers THE REPULSION BETWEEN ELECTRONS IN DIFFERENT INNER SHELLS. SHIELDING REDUCES THE NET ATTRACTIVE FORCE FROM THE POSITIVE NUCLEUS ON THE OUTER-SHELL ELECTRONS. METALLIC BONDING correct answers THE ELECTROSTATIC ATTRACTION BETWEEN POSITIVE METAL IONS AND DELOCALISED ELECTRONS DELOCALISED ELECTRONS correct answers ELECTRONS SHARED BETWEEN MORE THAN TWO ATOMS GIANT METALLIC LATTICE correct answers A THREE-DIMENSIONAL STRUCTURE OF POSITIVE IONS AND DELOCALISED ELECTRONS, BONDED TOGETHER BY STONG METALLIC BONDS. ENTHALPY, H correct answers THE HEAT CONTENT THAT IS STORED IN A CHEMICAL REACTION