Why is an atom with fewer electrons in the outer shell more reactive?
That isn't really true. What makes atoms more reactive is if their electronic configuration is nearly that of a noble gas -- in other words is either has just one or two electrons less or more than a noble gas.So elements with either 1, 2, 6 or 7 valence electrons tend to be especially reactive.
so the guy who gave the first answer doesnt know what hes talking about.
Alkaline metals are reactive because they contain one electron in their outer shell. Halogens are reactive because they contain seven electrons in their outer shell. The closer the number is to one or seven, the more reactive the element is. Elements with eight electrons in their outer shell show little or no reactivity.
Elements in the second group have 2 outer shell electrons and are also very reactive They are called?
Elements in the second group of the periodic table have 2 outer shell electrons and are also very reactive What are they called?
if it is highly reactive with substances in a place which people are or inside the body bit of a general question but if something is harmful it will be reactive which means it does not have a full outer shell of electrons and will want a full 8 electrons in it's outer shell to be stable so it will react with anything which will enable it to complete it's outer shell.
the reactivity of depends on the number of its outer shell electrons. one all outer shell electrons are there then there is little reactivity. If the atomic number is 19 then the element will 19 protons and 19 electrons. this means it has 2 electrons in the 1st shell 8 in the second 8 in the 3rd and 1 in the last. as it only has one it will be very reactive =)
If an atom has fewer than 4 electrons in its outer shell does it looses electrons gain electrons or both?
Nonmetals increase in reactivity from left to right because nonmetals on the right have more valence electrons. They need to gain fewer electrons to have a full outer shell. However, this trend only continues until group 17, because the noble gases already have a full outer shell. Therefore, their reactivity is the least of all the elements.
all elements are classified into groups depending on how many electrons it has on the outer shell. the first shell has two electrons the second and the subsequent shells have 8 or are supposed to have 8, so elements that have 7 on the outer shell and need 1 more so they are the most reactive on the other hand elements that have eight on the outer shell like neon gold silver platinum are not…
All alkaline metals are very reactive. this is due to the number of electrons they have in there outer shell. they are situated in the group 1,2 and im not 100% group 6-7. this is because the group determines how many electrons are in the atoms outer shell. so with all atoms trying to get a full outer shell of electrons they will try and loose or gain electrons. so group one and two will…
Metals have fewer electrons in their valence shell ( outer most shell ) which allows the electrons to move freely throughout their structure. Metals also tend to be reactive and have a low melting point, which allows them to easily transfer heat/electricity! ( For a more detailed answer research the "band theory" of metals )
Noble gases are non-reactive due to their stability. The outer most shell shoud have 8 electrons to be stable and all the elements in the eighth group have 8 electrons in their outer most shell so they do not need to take part in chemical reactions to become stable THAT is why they are non reactive!
As you move across the periodic table the elements gain a proton and an electron at each stage. This makes the nucleus larger each step you take and also increases the number of electrons in the outer shell. The number of electrons in the outer shell affects reactivity, too few and the element is reactive because it wants to lose them to get a full outer shell, too many (but not quite full) and it…
It depends how many electrons are in their outer ring called valence electrons. They want to have a full outer ring so they will become more reactive if they only need a few. For example Chlorine, Cl, needs one electron so it is very reactive. An element like neon that already has a full outer shell is not very reactive because it has no need to get more electrons.
Why is the arrangement of electrons in an element key to understanding why each element behaves the way it does?
The elements in the periodic table are arranged based on how reactive they are, which is based on how many electrons they have in their outer shell. For example, the elements on the ends are very reactive because on one side the elements have seven electrons and on the other the elements have one. The elements with one electron are trying to get rid of their electron whereas the elements with seven electrons are trying…
The most stable electron configuration for any atom is to have a complete outer shell. For the smallest atoms, that can be no electrons at all (for H+) since no shell is equivalent to a complete shell, or just two electrons in the outer shell, such as for a helium atom, but for most elements that means 8 electrons in the outer shell. We then have atoms which have five or more electrons in their…
The least reactive elements are the noble gases (helium, neon, krypton, argon, xenon). They each have a complete outer electron shell (two electrons for helium, eight electrons in the outer shell of the other noble gases). Chemical reactions take place in ways that result in making outer electron shells more complete (or for transition state elements, it can also make inner shells more complete), so if the outer electron shell is already complete, there is…