![]() The acid-base behaviour of the "hydroxides" (using the term in the widest possible sense) of the Period 3 elements. In Period 3, sodium with 11 protons is the least electronegative. Study with Quizlet and memorize flashcards containing terms like Discuss the impact on sustainability on the environment of burning waste polymers including those containing chlorine., Describe a method to obtain a pure, dry sample of alkene B from the reaction mixture and alculate the mass of alkene B that the student produced. so electrons will be more strongly attracted to the nucleus. Decreases down the group - Electrons are further from the. The reactions of the elements from sodium to. ![]() Discusses the trends in first ionisation energy, atomic radius, electronegativity, conductivity, melting point and boiling point as you go across the period from sodium to argon. there are more electrons, but the increase in shielding is negligible because each extra electron enters the same shell. Trend Increases across period - effective nuclear charge increases pulling electron pair more. Physical and atomic properties of the elements. The physical properties of the chlorides of the elements from sodium to sulphur, their structure and bonding, and their reactions with water. Going across period 3: the nuclear charge increases. Reactions of the oxides with water, and their acid-base behaviour. The nature of the chemical bonds and the geometry. of the group 1 elements and the group 7 elements shows the general pattern for the reactivity of other groups. The reactions of the elements from sodium to argon with water, oxygen and chlorine.ĭiscusses the link between the physical properties of the oxides of the elements from sodium to chlorine and their structure and bonding. Ionisation energy increases on going from left to right across a period and decreases on moving down a group. ĭiscusses the trends in first ionisation energy, atomic radius, electronegativity, conductivity, melting point and boiling point as you go across the period from sodium to argon. ![]() Geology a unit of geological time during which a system of rocks is formed. Physical and atomic properties of the elements. a nontechnical name for an occurrence of menstruation.
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