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The Elements have a different Total Number of Electrons, but the same number of Valence Electrons.

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12y ago

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Related Questions

How do you predict an elements group?

they have same numbers of electrons.


Do elements in the same group have similar atomic numbers?

Elements in the same group have similar chemical properties but not necessarily similar atomic numbers. Elements in the same group have the same number of valence electrons, which determines their reactivity and chemical properties.


How does the numbers of electrons change across a period of elements?

The number of valence electrons for the elements increases across a period, from 1 (group 1) to 8 (group 18).


What is the different about the valence electrons for all elements in a group?

Valence electrons for elements in the same group are the same because they are located in the outermost energy level of an atom. This common number of valence electrons is what gives elements within a group similar chemical properties.


Why do group 13 elements have different properties than group 12 elements?

theres a difference in the number of valence electrons


How many electrons occur in the valence level of Group 7A and 7B elements. Why are they different?

Group 7A elements have 7 electrons in their valence level, while Group 7B elements have 17 electrons in their valence level. This difference occurs because elements in Group 7A have 7 valence electrons, while elements in Group 7B have 7 valence electrons plus the 10 additional electrons in the d sublevel which contributes to a total of 17 valence electrons.


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

Elements within a group have a similar number of valence electrons. These electrons are responsible for the chemical properties of an element, which is why elements within the same group often have similar chemical behavior.


What is different about the group 18 elements?

Group 19 elements have 8 valence electrons (obey octet rule) and are hence stable.


The group number on the periodic table corresponds to which characteristic of the elements of that group?

use your brain.


What is the number of valence electrons for group 2 elements?

Group 2 metals have 2 valence electrons. In fact, the number of valence electrons of elements can be deduced from the group number (e.g. group VII elements have 7 valence electrons).


Why do Group 12 elements have different properties than Group 13?

theres a difference in the number of valence electrons


What are the valence electron of an atom?

The valence electrons are found on the valence shell, the outermost shell of an atom. By using the periodic table and the group numbers, one can find the number of valence electrons for elements in groups (vertical columns) 1-2 and 13-18. For the 1st 2 groups (1 and 2), the group number tells the number of valence electrons for elements which belong in that group Elements in the 1st group have 1 valence electron and elements in the 2nd group have 2 valence electrons. For groups 13-18, refer to the tens' value (the teen value that is not the "1" in these cases). Elements in group 13 have 3 valence electrons, elements in group 14 have 4 and so on to the the final group, 18, where electrons have a full octet of valence electrons.