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The name of the family is the Halogen family.

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The Halogens have seven valence electrons.

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Group 7?
The Halogens.

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Q: What group of elements has seven valence electrons?
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What elements have seven valence electrons?

The halogens, or group 17

Which electron has seven valence electrons?

Any element in the halogen group will have seven valence electrons. These elements include fluorine, chlorine, bromine, iodine, and astatine.

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.

The number of electrons in the outer energy level of Group 17 elements is?

there are 7 electrons in the outer energy level of group 17 elements

What atoms have seven electrons in their outermost energy levels?

All halogens (fluorine, chlorine, bromine, iodine and astatine) have 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.

What elements have seven valance electrons?

The halogens have seven valence electrons. The halogens are F, Cl, Br, I, and At. Fluorine

What are the elements with seven valence electrons?

halogens such as flourine, chlorine, bromine..

Which group on the periodic table tends to have seven valence electrons?

halogens or group 17

Which atoms are most reactive?

The most reactive elements have either 1 valence electron or 7 valence electrons

What group of elements with seven electrons in the outer level?

halogens (group 17 elements)

Which elements is less reactive an element whose atoms have seven valence electrons or an element whose atoms have eight valence electrons?

the element with seven valence electrons will be more reactive. The reason for this is that elements want to always want to have a full valence shell (they always want 8, like a noble gas). The element with eight valence electron is happy with its full shell and will not want to get rid of any electrons.