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The table was organized so that elements of similar properties are in the same group. What (partly) determines reactivity is the number of electrons an atom has in it's ground state.
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Within the atom electrons are organized in shells. Atoms are stable when they have 8 electrons in their outer shell (for hydrogen and helium it is 2 electrons.)
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Elements of:
Group 18 have 8 electrons in their outer shells
Group 17 have 7 electrons in their outer shells
Group 16 have 6 electrons in their outer shells
Group 15 have 5 electrons in their outer shells
Group 14 have 4 electrons in their outer shells
Group 13 have 3 electrons in their outer shells
Groups 3-12 have varied number of electrons in their outer shells
Group 2 have 2 electrons in their outer shells
Group 1 have 1 electron in their outer shells
What else can I help you with?
What are some good questions about the periodic table?
Some good questions about periodic table: where are metalloids placed? why group 18 elements are inactive? How many groups and periods are in periodic table? How reactivity changes across and down the group?
Where and what side on the periodic table is more active?
The most active elements on the periodic table are found on the left side and in the bottom rows, specifically the alkali metals (Group 1) and the alkaline earth metals (Group 2). Alkali metals, such as sodium and potassium, are highly reactive, particularly with water, and their reactivity increases as you move down the group. In contrast, halogens (Group 17) on the right side of the table are also very reactive, with reactivity decreasing down the group. Overall, reactivity trends vary depending on whether the elements are metals or nonmetals.
Which group in the periodic table is known as the noble gases?
The noble gases are a group of elements in the periodic table known as Group 18. These gases are colorless, odorless, and have low reactivity due to their stable electron configuration. Examples include helium, neon, argon, krypton, xenon, and radon.
An element has a very low boiling point and very low reactivity. Where on the periodic table is this element most likely to be found?
This is a noble gas (group 18).
When moving down the middle of the periodic table is there an decrease in reactivity?
In general, moving down the middle of the periodic table results in a decrease in reactivity for transition metals. This is because as you move down a group, the valence electrons are further away from the nucleus, making it harder for the atom to lose or gain electrons and therefore lowering its reactivity.
What happens to the reactivity as you move down group 1 in the periodic table?
Reactivity in group 1 of elements increases as we go down the group (to francium) because in the alkali metals as we go down the group number of atomic shells increases so the elements with most shells will easily release their electrons in the outer most shell.
What family group on periodic table is xenon?
Xenon belongs to the noble gas family (group 18) on the periodic table. Noble gases are characterized by their stability and lack of reactivity due to a full valence electron shell.
What is the periodic trend for reactivity of metals?
Metals Period - reactivity decreases as you go from left to right across a period.Group - reactivity increases as you go down a group Why? The farther to the left and down the periodic chart you go, the easier it is for electrons to be given or taken away, resulting in higher reactivity.Non-metals Period - reactivity increases as you go from the left to the right across a period.Group - reactivity decreases as you go down the group. Why? The farther right and up you go on the periodic table, the higher the electronegativity, resulting in a more vigorous exchange of electron.
Does the reactivity increase as you move down a group in the periodic table?
Yes, reactivity generally increases as you move down a group in the periodic table due to the increase in the number of electron shells, which leads to a greater distance between the outer electrons and the nucleus, making it easier for the outer electrons to be involved in chemical reactions.
What happens as you move down the family on a periodic table the reactivity?
the reactivity of metals increases as you go down a group in the periodic table. also elements in the same group have similar chemical properties because they have the same electronic configuration,i.e.they have the same arrangement of electrons
In group 1 in the periodic table which element is most active?
In terms of reactivity, Potassium(K) is the most reactive element among group 1 elements.
How do you tell the reactiveness of a non metal on the periodic table?
The periodicity of nonmetals is that reactivity increases from left to right across a period, through group 17, the halogens. As you move down a group, reactivity decreases. Fluorine is the most reactive element.
Metal reactivity from left to right in the periodic table.?
Decrease reactivity
What are some good questions about the periodic table?
Some good questions about periodic table: where are metalloids placed? why group 18 elements are inactive? How many groups and periods are in periodic table? How reactivity changes across and down the group?
What is a group in periodic table?
In the periodic table, a group is a vertical column of elements that share similar chemical properties due to having the same number of valence electrons. There are 18 groups in the modern periodic table, each with its own unique characteristics and reactivity patterns. Examples of groups include the alkali metals (Group 1) and the halogens (Group 17).
Is there a relationship between an elements position in the periodic table and its chemical reactivity?
Yes, there is a relationship between an element's position in the periodic table and its chemical reactivity. Elements on the left side of the periodic table (Group 1 and 2) tend to be more reactive because they readily lose electrons to form positive ions. Elements on the right side of the periodic table (Group 17 and 18) tend to be less reactive as they have a full outermost electron shell.
Where and what side on the periodic table is more active?
The most active elements on the periodic table are found on the left side and in the bottom rows, specifically the alkali metals (Group 1) and the alkaline earth metals (Group 2). Alkali metals, such as sodium and potassium, are highly reactive, particularly with water, and their reactivity increases as you move down the group. In contrast, halogens (Group 17) on the right side of the table are also very reactive, with reactivity decreasing down the group. Overall, reactivity trends vary depending on whether the elements are metals or nonmetals.
