Describes the reactions of the period 3 elements, sodium to argon, with water, oxygen and chlorine. Period 3 incorporates eight elements, na (z=11) to ar (z=18) all period 3 elements have three filled inner energy levels (electron shells) corresponding to ne ([ne]=1s2 2s2 2p6), which shields the nuclear charge from the outermost valence electrons across the period, there is successive filling of the outermost 3s (3s1 and. Sodium peroxide, magnesium oxide and aluminum oxide are metallic oxide which have high melting and boiling point compared to other period 3 oxide the period, the number of electrons also increase across the period, the differences in electronegativity between the element and oxygen decrease. Now we will look at the reactions of period 3 elements with oxygen the reactions and some notes on them are in the table below the reaction of period 3 elements with oxygen all period 3 elements up to phosphorous will react with chlorine, these reactions and some notes on them are in the table below the reaction of. 3 aim to study the properties of the oxides of elements in period 3[peka 2] experiment 4 problem statement how do the acid-base properties of the oxides of elements change across period 3 hypothesis acidic properties of the oxides of elements increase whereas the basic properties of the oxides of. This page discusses the reactions of the oxides of period 3 elements (sodium to chlorine) with water, and with acids or bases where relevant (as before this trend applies only to the highest oxides of the individual elements (see the top row of the table), in the highest oxidation states for those elements. Many elements react with oxygen on heating these reactions chlorides using chlorine gas (see experiment: reacting elements with chlorine) the other elements 3 group 1 metals are stored under oil, this can be removed using paper tissue 4 cut pieces of group 1 metals into cubes no bigger than 3mm 5 for the. A popular choice of exemplar is the trend in the oxides of the elements of period three in terms of their physical states at room temperature and their acid-base characteristics this is another microscale experiment investigating the trend in solubilities of the sulphates and carbonates of groups 1 and 2.
Lab experiment 3: a study of trends in period 3 purpose: the purpose of the experiment is to study the trends in properties of the oxides and chlorides across the third period of the periodic table apparatus: - eye protection - 1 rack + 4 test tubes - full range indicator paper - samples of the following oxides: naoh, mgo,. The trends in bond type and formula of the compounds of the elements of period 3 of the periodic table are tabulated and explained the trends in valency and oxidation states of the elements in their compounds is also discussed and explanations provided on the basis of their electron configurations the oxides, chlorides. Let's look at the chemical reactivity of some of the elements and relate that reactivity to some of the properties we have just talked about reactivity leave the questions until after you perform the second part of the experiment and read the post-lab discussion section sodium and magnesium are both in period 3.
View lab report - exp5 wani from chemistry 101 at sunway university college title: investigating the properties of period 3 oxides aim: to investigate the properties some of the elements of period 3. Results discussion structure and bonding, melting point and boiling point the physical properties of the oxides vary across period 3 elements going across period 3 but when we were conducting the experiment, we noticed the solution turned cloudy when silicon oxide is added into water according to an internet. Properties of the period 3 oxides sodium forms three oxides: sodium oxide, na2 o sodium peroxide, na2o2 sodium superoxide, nao2 of these three sodium oxide is considered to be the 'normal' oxide physical properties it is a white powder with a high melting point this is indicative of its giant ionic structure.
The elements in period 2 have their level n=1 energy completely filled they proceed to fill their n=2 level moving across the table to the right in a similar fashion, moving down one period to row 3, there are the elements na (sodium) through ar (argon) the period-3 atoms have levels n=1 and n=2 filled they are populating. About 1910 sir ernest rutherford's experiments on the scattering of alpha particles by the nuclei of heavy atoms led to the determination of the nuclear electrical then there are two periods of eight elements each: the first short period, from lithium, 3, to neon, 10 and the second short period, from sodium, 11, to argon, 18.
(b) describe the experiment carried out by rutherford and his co-workers that led to the discovery of the nucleus explain how rutherford interpreted (iv) each element has its own unique emission spectrum (3) because each element has its own number of electrons distributed among the energy levels. Tom iwanowski 3,445 views 7:28 32 changes of ionic to covalent,basic to acidic,of period 3 oxides [sl ib chemistry] - duration: 4:28 richard thornley 46,664 views 4:28 14 acid base behaviour of oxides of 3rd period elements ch1 12th - duration: 13:04 education unlocks golden doors 525 views.
A presentation and worksheet for a2 aqa chemistry students on periodicity across period 3. Trend in electrical conductivity of period 3 elements what is here electrical conductivity increases going across period 3 from sodium to aluminium, then decreases to silicon the remaining elements have negligible conductivity you can: view a table of relative electrical conductivity values view a graph of relative. The gold foil experiment by rutherford, first done in 1911, is of particular interest to us in this unit because it was this experiment that first gave science an approximate measurement for the looking at the elements in period 2, the number of protons increases from lithium with three protons, to fluorine with nine protons. Introduction across the element of period 3, it contains sodium, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine and argon for sodium and magnesium, they are the members of the s-block of the periodic table while the rest are the members of the p-block there are the oxides of metal and non- metals.
Chemistry lab report - investigating the properties of period 3 chlorides introduction: aim: to study the chlorides of period 3 elements and classify them according evaluation: during the experiment there were a couple of errors in the measurement of the temperatures and ph of the solutions, and in the volume of distilled. An element family is a set of elements sharing common properties elements are classified into families because the three main categories of elements (metals, nonmetals and semimetals) are very broad the characteristics of the elements in these families is determined primarily by the number of electrons. Through their observations and experiments the german chemist, johann dobereiner in early 1800's was the first to consider the idea of trends among properties of elements by 1829 he noted a similarity among the physical and chemical properties of several groups of three elements (triads) in each case, he. Reactions of non-metal oxidesin these oxides, the period 3 element is covalently bonded to oxygenin most covalent oxides the very electronegative oxygen induces a small positive charge on the atom to which it is attachedthe size of the positive charge on the atom increases with the number of doubly bonded oxygen.