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Elements within a group have similar number of?

Updated: 8/16/2019
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electron valence hh

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Valence Electrons

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Q: Elements within a group have similar number of?
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Elements within a group have a similar number of what?

Number of valence electrons


What do elements within a group have a similar number of?

Chemical elements that are in the same group within the periodic table have the same numbers of electrons in the outermost shell. This gives them similar reactivity.


Why do we say that elements within a group act alike?

The chemical elements in a group have similar properties.


What collection of elements on the periodic table have similar properties?

Elements with similar properties occur within the groups(columns) on the periodic table.Elements in the same group have same number of valence electrons and hence have similar chemical and physical properties.


Do elements in the same group or period have similar properties?

Elements of same group have the same number of valence electrons and hence have similar properties.


Element within a group always have the same number of?

Elements within a group always have the same number of valence electrons.


Do any of the elements on the periodic table of elements have similar properties?

Elements in the same group have similar properties. The groups are made according to the properties of elements. Elements in a group have an equal number of valence electrons.


Which elements have similar properties on the periodic table?

The elements in the same groups usually do. Elements in the same group have same number of valence electrons and hence have similar chemical and physical properties.


Do elements in the same group have similar atomic numbers?

No. Elements in the same group have same number of valence electrons.


Explain why elements within a group have similar chemical properties?

Elements in the same group have similar electronic configurations. For example, all elements in Group 1 contain 1 unpaired electron located in an S orbital. It's the electronic configuration of atoms (and to a lesser degree, their size and charge) which dictate their chemical properties. Nuclear properties, on the other hand are dictated largely by the atoms size and number of protons and neutrons. Chemists, for the most part, aren't interested in these.


Why do the elements in the vertical columns all have the same chemical properties?

Group 1 have one valence electron. The elements in Group 2 have two. The elements in Group 17 have seven valence electrons, and Group 18 elements have eight. Because the valence electrons within a family are the same, the elements in that group have similar properties.


Why do the elements in a group of the period table have similar properties?

Elements in the same group have same number of valence electrons and hence have similar chemical and physical properties.