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how many valence electrons does chalcogens have

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14y ago

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How many electrons are in the outer shell of O?

Oxygen has 6 electrons in its outer shell. It belongs to group 16 of the periodic table, also known as the oxygen family or chalcogens, and has 6 valence electrons.


How many valence electrons does oxygen-16 have?

Oxygen-16 has 6 valence electrons because it is in Group 16 of the periodic table, also known as the oxygen family or the chalcogens. Each oxygen atom contributes 6 valence electrons.


How many valence electrons does group one a have?

One valence electrons


How many valence are in chlourine?

A total of 7 valence electrons. If I remember correctly, the number of valence electrons of all group A elements are designated by their group number. Chlorine is in group VIIA, hence 7 valence electrons.


How can i look at the periodic table and tell how many valence electrons an element has?

The group of the element indicates the amount of valence electrons. For example, the alkali metals have one valence electron and is in group one whilst the halogens have seven valence electrons and are in group seven.


How many electrons does Ba has?

Valence electrons are electrons that are on the outside "shell." In Group (column) 1, there is only one valence electrons for each element. In Group (column) 2, there are two valence electrons. Group 13: 3 valence electrons Group 14: 4 valence electrons Group 15: 5 valence electrons Group 16: 6 valence electrons Group 17: 7 valence electrons Group 18: 8 valence electrons There is no Group 19, so this list is done. For the metals, each element will need to be mapped out utilizing the Bohr Diagram design or something of the like as valence electrons are difficult to define due to the grouping on the periodic table. The most valence electrons that can be in an outer shell is eight. Barium (Ba) is in Group (column) 2, and thus has only two valence electrons.


How do I find the valence electrons in an atom?

To find the valence electrons in an atom, look at the group number on the periodic table. The group number tells you how many valence electrons an atom has. For example, elements in group 1 have 1 valence electron, elements in group 2 have 2 valence electrons, and so on.


How many group 15 valence electrons?

15-10=5 5 valence electrons


How many valence have He?

As helium is located in group 18, it has no valence electrons.


How many valence electrons does group 13 have?

== == It is three, the valence electrons basically depends on the last number of the group its in; such as, group 14 the valence electrons would be 4. i hope i helped


How many valence electrons do elements group 17 have?

There are 7 valence electrons in elements of group-17. They are called halogens.


How do you determine the number of valence electrons in an element?

To determine the number of valence electrons in an element, you look at the group number on the periodic table. The group number tells you how many valence electrons an element has. For example, elements in group 1 have 1 valence electron, elements in group 2 have 2 valence electrons, and so on.