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How are group 1 elements different from the group 18 elements?
The difference between group 1 and group 2 metals is that group 1 metals have ONE valence electron and group 2 have TWO valence electrons. This makes a great difference in how they react chemically with other elements and compounds.
What makes halogens stand out from all of the other elements?
They are highly reactive
Why is group 17 more reactive than group 16?
The elements of this group do not have a stable number of electrons. - - - - - Group 17, the halogens, are extremely reactive (the only non-reactive elements are in group 18, the noble gases, but group 17 elements are more reactive than other group elements) because of their high "effective nuclear charge." An atom wants to have eight electrons in its outer shell, whether it's because it naturally has that many like the group 18 elements do or because it bonded to other atoms and share electrons with them. The closer to eight an atom has on its own, the higher this charge is - which makes it more reactive. Group 17 atoms all have seven electrons in their outer shells, so they are on the hunt for anything they can possibly grab. For more entertainment, the fewer shells an atom has between its "helium layer" (that lil' shell right around the nucleus with two electrons in it) and the outer shell, the higher this effective nuclear charge is. Because fluorine only has two shells, its effective nuclear charge is as high as it can get...which is why fluorine will react with anything including glass.
In terms of electrons in the periodic table why are group 1 metals very reactive and group 7 non-metals very reactive too?
Atomic elements typically want to have full electron shells ("valence shells"), instead of shells with uneven numbers. Group 1 metals have only 1 electron in their valence shell, so they quickly react to lose this electron and have an empty shell (but a full shell underneath it). Group 7 elements have 7 valence electrons and react quickly to steal another atom's electron and gain a full shell of 8 electrons. This willingness to lose or steal electrons makes the elements very reactive, but in different ways. Group 1 elements will become positively charged ions, and Group 7 will become negatively charged. (Na+ versus Cl-) Group 6 elements (such as oxygen) are also somewhat reactive and will steal 2 electrons to become even more negatively charged (O 2-)
Is silver more reactive than gold?
The investigator will discover that potassium (K) is much more reactive than silver (Ag). Silver is a transition metal (d block elements) while potassium is an alkali metal. The alkali metals are in Group 1 of the periodic table, and elements on the left side (and going down) are quite a bit more reactive than those in the middle, where silver is. It turns out that potassium has a lone valence electron, and this element want to loan that electron out in a chemical bond very badly. That makes potassium much more likely to form a chemical bond than silver, and makes it more reactive.
What makes the elements in the halogen group reactive?
they need one more electron to attain noble gas configuration and hence are highly reactive.
What is the most reactive group of elements?
It is in Group 17 that you will find the most reactive elements. These elements all lack only one electron from having that "magic" electron configuration of the inert gases. That makes these elements very "hungry" to get that "last electron" so their electron structures become more stable.
How are group 1 elements different from the group 18 elements?
The difference between group 1 and group 2 metals is that group 1 metals have ONE valence electron and group 2 have TWO valence electrons. This makes a great difference in how they react chemically with other elements and compounds.
What makes halogens stand out from all of the other elements?
They are highly reactive
Why is group 17 more reactive than group 16?
The elements of this group do not have a stable number of electrons. - - - - - Group 17, the halogens, are extremely reactive (the only non-reactive elements are in group 18, the noble gases, but group 17 elements are more reactive than other group elements) because of their high "effective nuclear charge." An atom wants to have eight electrons in its outer shell, whether it's because it naturally has that many like the group 18 elements do or because it bonded to other atoms and share electrons with them. The closer to eight an atom has on its own, the higher this charge is - which makes it more reactive. Group 17 atoms all have seven electrons in their outer shells, so they are on the hunt for anything they can possibly grab. For more entertainment, the fewer shells an atom has between its "helium layer" (that lil' shell right around the nucleus with two electrons in it) and the outer shell, the higher this effective nuclear charge is. Because fluorine only has two shells, its effective nuclear charge is as high as it can get...which is why fluorine will react with anything including glass.
What at the atomic level what makes elements reactive?
their atoms take,give,or share electrons with other atoms :)
In terms of electrons in the periodic table why are group 1 metals very reactive and group 7 non-metals very reactive too?
Atomic elements typically want to have full electron shells ("valence shells"), instead of shells with uneven numbers. Group 1 metals have only 1 electron in their valence shell, so they quickly react to lose this electron and have an empty shell (but a full shell underneath it). Group 7 elements have 7 valence electrons and react quickly to steal another atom's electron and gain a full shell of 8 electrons. This willingness to lose or steal electrons makes the elements very reactive, but in different ways. Group 1 elements will become positively charged ions, and Group 7 will become negatively charged. (Na+ versus Cl-) Group 6 elements (such as oxygen) are also somewhat reactive and will steal 2 electrons to become even more negatively charged (O 2-)
Why is chlorine is so reactive?
Chlorine's structure makes it very reactive (it is in group VII of the Periodic Table and therefore needs to gain one electron in order to become stable)!
Why is most reactive nonmetal are found in group 17?
All metals react with other elements by losing their outermost electrons in their atoms forming 'positive ions'. So the ease with which they can lose these electrons gives us an indication of how reactive they are. Aluminium, as an example has three electrons in the outer orbits of each aluminum atom, and so three have to be lost for the aluminum to react. Calcium, a more reactive metal has only 2 electrons in the outermost orbits of its atoms, and so these are more easily lost, making calcium more reactive. However all group 1 elements (Lithium, Sodium, Potassium, Rubidium, Caesium, Francium) all have just one electron in the outermost orbits of their atoms, and so they are the most reactive of all metals as this one electron is very easily lost. More than this, the reactivity gets stronger as the atoms get larger (as you proceed down the group) because the outermost electron is further away from the nucleus and is therefore less strongly bound to the atom than the outermost electron in smaller atoms like lithium as the electron is closer to the nucleus and more tightly bonded to the rest of the atom. This means that Lithium is the least reactive of the Group 1 elements and Francium the most reactive. Francium is radioactive and does not exist in large quantities, so practically caesium is the most reactive. Lithium, when placed on the surface of some water fizzes vigorously. However, caesium, when placed in a glass trough of water explodes violently, with enough force to shatter the trough and possibly damage greatly the surrounding area too.
What makes elements similar?
By elements being similar, I assume you mean elements of the same group being similar rather than all elements in general. Elements of the same group are similar in terms of chemical properties because they share a similar electron configuration. For instance group one of the periodic table, the alkali metals, has only one electron in its outermost unfilled orbital. Because chemical reactions are dependent on the exchange and sharing of electrons, the similarity of electron configuration in elements of a group results in them having similar properties. For instance, the alkali metals are all soft and extremely reactive.
What is a dangerously corrosive halogens?
Halogens are elements found in group 7 of the periodic table. They are very reactive as they have seven electrons on the outer shell and are only gaining one more to stabilise. This makes them very reactive and alkali. Fluorine is the most corrosive, found at the top of group seven and astatine, the least corrosive, though is still very corrosive. The lower down an element in group seven is, the less corrosive it is.
Why chlorine makes benzene less reactive?
This is because chlorine is an electronegative group and is pulling electrons away from benzene. This makes the ring less reactive and more positive. Then when a positive electrophile tries to attach, the benzene does not want to react.
