they become more metallic
Elements tend to become more metallic as you go down a group. This is because as you move down a group, the number of electron shells increases, resulting in weaker attraction between the nucleus and the outermost electrons, making it easier for the atoms to lose electrons and show metallic properties.
Elements in the same group on the periodic table have similar chemical properties because they have the same number of valence electrons. This determines how they interact with other elements to form compounds, resulting in similar chemical behavior within the group.
The reactivity is increasing goinng down in the group.
As you go down the Group 2 (alkaline earth elements) elements they become more and more reactive. i.e. H2O+Ca=Ca(OH)2+H2 there is more hydrogen (g) created and at a faster pace than H2O+Mg=Mg(OH)2+H2.
The atomic numbers of the elements down a group increase. this means, more electrons. More electrons mean more shells. More shells mean larger radius. Larger radius is nothing but larger size. Thus, the number of electrons or shells is the reason why the size of the atom of elements increase down the group.
As you go down a group on the periodic table, elements generally become more metallic. This trend is due to the increase in the number of electron shells and distance between the nucleus and the outermost electrons, which makes it easier for elements to lose electrons and exhibit metallic properties.
Metalic Nature DECREASES as you move across a period (horizontal rows) from left to right. It INCREASES as you go down a group (the vetical collums)
The elements in group 1 become more reactive as you go down the group.
Group 17 elements (group 7) become more reactive as you move down the group due to the increase in atomic size and shielding effects. As you go down the group from fluorine to iodine, the outermost electron shell gets farther from the nucleus, leading to weaker attraction, making it easier for the elements to gain an electron and become more reactive.
In the Periodic table of Elements There are 118 Elements 96 are metals The rest are non-metals Group 7= Halogens Group 8/0= Noble gases Going down group 1 and 2, elements become more reactive
Elements in the same group on the periodic table have similar chemical properties because they have the same number of valence electrons. This determines how they interact with other elements to form compounds, resulting in similar chemical behavior within the group.
As you go down a group on the periodic table, elements generally become more metallic. This is because the number of electron shells increases down the group, leading to greater distance between the nucleus and the outer electrons. As a result, the outer electrons are less strongly attracted to the nucleus, making the elements more metallic.
As you go down Group 1 in the periodic table, the reactivity of the elements increases due to the decrease in ionization energy and increase in atomic size. The metals become more reactive with water and air as you move down the group.
As we move down the group ,the electrons in the valence shell remains constant but the number of shells increases by one.size of the element increases down the group .elements are more electro-positive as we move down the group so elements at the bottom are more electro-positive than those at the top.as the size of the elements increases the nuclear charge on the elements decreases.due to less nuclear charge shielding effect decreases down the group.
The reactivity is increasing goinng down in the group.
For metals, reactivity generally decreases as you move down a group because the outer electrons are further from the nucleus, making it harder for them to be lost. Nonmetals tend to become more reactive as you move down a group because they have more energy levels and an increased ability to gain electrons. Overall, the reactivity of elements going down a group is influenced by changes in atomic size and electron affinity.
As you go down the Group 2 (alkaline earth elements) elements they become more and more reactive. i.e. H2O+Ca=Ca(OH)2+H2 there is more hydrogen (g) created and at a faster pace than H2O+Mg=Mg(OH)2+H2.
The valency of elements tends to remain constant or increase by one going down a group on the periodic table. This is because elements in the same group have the same number of valence electrons, which determines their valency. As you move down a group, the number of electron shells increases, allowing elements to either maintain their valency or increase it by gaining electrons to achieve a full outer shell.