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Why do elements in a group have the same number of valence electrons?
The elements in a group, also called a family, have similar properties, one of which is the same number of valence electrons. This accounts for why the elements in a group have similar properties.
Which group in the periodic table tends to form ions with a 2 charge?
An element should release two of its outermost electrons to obtain +2 ion. The elements in group 2A are the most likely elements to have this configuration. These are known as Alkali Earth Metals.The elements in the 2nd group have 2 valence electrons. Elements give away their valence electrons to get stable electron configuration. The elements in the 2nd group such as beryllium, magnesium, calcium, strontium, barium likely to have positive ion with charge of 2.Group II elements (the alkaline earth metals). This is because this particular group of elements have two extra electrons in their electronic configurations. They need to lose these two electrons to attain the stable noble gas configuration. So they will have a tendency to lose them to other atoms or group of atoms, in the process incurring a double positive charge (since there will now be two less electrons than protons). So Be, Mg and Ca will all form positive ions (cations) with a charge of +2. They are represented by Be2+, Mg2+ and Ca2+ respectively. But, other elements like copper and barium will also form cations of charge +2.
What category of elements on the periofic table tends to create negatively charged ions?
The oxygen, nitrogen, and fluorine groups love to steal electrons from other elements, making them negatively charged ions, whereas most metals up to the carbon group like to give away electrons, making them positively charged ions. I hope that's what you were asking.
What group of elements easily gains one valence electron?
Generally speaking, the metals give away electrons during a reaction. Not all metals are equally reactive, however. The metals of group 1 (the alkali metals) all have 1 valence electron. This 1 electron is given away very easily, making this group the most reactive of all the metals. They are so reactive, in fact, that these elements do not exist by themselves; only in compounds.
What does an element that forms an anion do?
When the element bonds with another element it accepts electrons (it does not give them away) and becomes negatively charged.
Why do elements in a group have the same number of valence electrons?
The elements in a group, also called a family, have similar properties, one of which is the same number of valence electrons. This accounts for why the elements in a group have similar properties.
What is the similarity of the elements in group 3 on the periodic table?
Elements in group three basically have THREE electrons in their outtermost orbitals.However, reactivity increases down the group with Thalium(Tl) being the most reactive as its outtermost electrons are further away from the nucleus.These elements react by losing 3 electrons and therefore they all have a valency of +3.
What is the number of valence electrons in group one?
Valence electrons are the electrons in the furthest electron shell from the nucleus.For the first three rows, essentially, the number of valence electrons is the number of squares the element is away from the beginning of the row at the left.For example. Sodium is the first (group 1) it has 1 valence electron. Magnesium is the second, it has 2 valence electrons.
When elements react what are given away?
electrons
What do you notice with the number of valence electrons?
The number of valence electrons determine the chemical properties of a particular element. For example, elements in group 1 tend to donate its valence electron away to produce its stable +1 ion. It also explains the formation of -1 ions from group 17 elements (halogens).
What is needed for electrons to pull away from atoms?
you need two atoms depending how many electrons they want to get or get rid of like water hydrogen wants to give away one electron and oxygen wants to get two electrons that is how it becomes H2O
Why do the elements in the group 1 and 2 react with group 17?
Elements in group 1 have 1 electron in their outer shell. Group 7 electrons have 7 electrons in their outer shell. This means that the group 1 element needs to give its electron to the group 7 element so that they both have full outer shells, making them stable. By a school boy in yr. 10
An element from group eighteen from the periodic table is?
An element from group eighteen from the periodic table is commonly referred to as a "noble" or "inert" gas. These elements have filled electron shells, and therefore they do not share, take or give away any electrons. As a group they do not react with othere elements to form compounds (with only a couple of rare exceptions).
Why do elements on the left side of the periodic give away electrons?
The attraction between the atomic nucleus and electrons is less strong.
What family of the periodic table is most stable?
The Noble Gases are the most stable group of elements because since they have a full outer shell of valence electrons they cannot lost or gain electrons. Because of this the are inert, and cannot react with other elements in normal circumstances
Do elements in group 2A gain or loose electrons when they become ions?
Lose 2Alkaline-earth metals have 2 outer shell electrons. All atoms "want" eight. They will achieve a full outer shell by losing or gaining the least number of electrons. Since group 2A elements have two valence electrons, they would either have to gain 6 electrons or lose 2. It is easier to lose 2.
Which group in the periodic table tends to form ions with a 2 charge?
An element should release two of its outermost electrons to obtain +2 ion. The elements in group 2A are the most likely elements to have this configuration. These are known as Alkali Earth Metals.The elements in the 2nd group have 2 valence electrons. Elements give away their valence electrons to get stable electron configuration. The elements in the 2nd group such as beryllium, magnesium, calcium, strontium, barium likely to have positive ion with charge of 2.Group II elements (the alkaline earth metals). This is because this particular group of elements have two extra electrons in their electronic configurations. They need to lose these two electrons to attain the stable noble gas configuration. So they will have a tendency to lose them to other atoms or group of atoms, in the process incurring a double positive charge (since there will now be two less electrons than protons). So Be, Mg and Ca will all form positive ions (cations) with a charge of +2. They are represented by Be2+, Mg2+ and Ca2+ respectively. But, other elements like copper and barium will also form cations of charge +2.
