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What tells us about the similarities in the chemical properties of the elements in a group on the periodic table?
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.
Does the reactivity of elements in group 2 increase going up or down?
The reactivity is increasing goinng down in the group.
How does the reactivity of the elements in group 2 change on descending 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.
Why does the size of the elements increase down a group?
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.
What trend applies to all members of the carbon group?
All members of the carbon group (Group 14 elements) exhibit a trend of increasing metallic character down the group. As you move from carbon (a non-metal) to lead (a metal), elements become more metallic in nature, displaying properties such as increased conductivity and malleability. Additionally, the ability to form covalent bonds decreases down the group, while the tendency to form ionic bonds increases. This reflects changes in electronegativity and atomic size as you descend the group.
Are elements in the front rows more metallic than the elements in the last row?
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)
What kind of group one are the most reactive?
The elements in group 1 become more reactive as you go down the group.
Why group 7 elements get more reactive as you go down the group from fluorine to iodine?
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.
How many elements on the periodic table of elements?
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
As you go down a group the elements generally become more or less metallic?
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.
What happens to the group 1 elements as you go down the table?
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.
What tells us about the similarities in the chemical properties of the elements in a group on the periodic table?
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.
What is the similarity and the difference between the two elements found in the same 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.
Does the reactivity of elements in group 2 increase going up or down?
The reactivity is increasing goinng down in the group.
How does reactivity work with the elements going down the groups for metals and non metals?
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.
How does the reactivity of the elements in group 2 change on descending 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.
How does valency of elements vary going down a group?
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.
