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Answered 2014-06-25 17:24:17

The halogens making up group 17 on the Periodic Table have seven electrons in their outer shell. The five highly reactive elements in this group are Fluorine, Chlorine, Bromine, Iodine, and Astatine.

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Which group contains elements whose atoms have three electrons in their outer level?

Group 13


How are the electron clouds of the atoms of the elements in a group the same?

Atoms of the elements in a group have the same number of electrons in their outer energy shells. This gives the elements similar Chemical Propetries.


What are atoms that have the same number of valence electrons in their outer shell?

Such atoms belong to a group in the periodic table of elements.


Do Atoms of elements in the same group have the same number of electrons in their outer layer?

Elements in the same column going vertically have the same number of electrons in their outer layer, also known as valence electrons


Do elements in the same group have the same number of electrons in their outer shells?

Yes. Elements in the same group have similar properties, due to the fact that their atoms have the same number of electrons in the highest occupied (outer) energy level.


Which periodic group contains elements whose atoms have six electrons in their outer level?

Group 16, the oxygen - sulfur group


What group on the periodic table contains elements whose atoms have six electrons in their outer level?

6


What does the group of the periodic have to do with reactivity?

The table was organized so that elements of similar properties are in the same group. What (partly) determines reactivity is the number of electrons an atom has in it's ground state. . Within the atom electrons are organized in shells. Atoms are stable when they have 8 electrons in their outer shell (for hydrogen and helium it is 2 electrons.) . Elements of: Group 18 have 8 electrons in their outer shells Group 17 have 7 electrons in their outer shells Group 16 have 6 electrons in their outer shells Group 15 have 5 electrons in their outer shells Group 14 have 4 electrons in their outer shells Group 13 have 3 electrons in their outer shells Groups 3-12 have varied number of electrons in their outer shells Group 2 have 2 electrons in their outer shells Group 1 have 1 electron in their outer shells


How many electrons are in the outer energy level of group 17 elements?

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


Elements in a group have-?

Elements in a group have the same number of electrons in their outer orbital.


What structural feature of their atoms is characteristic of elements in a group of the periodic table?

The periodic table also has a special name for its vertical columns. Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons.


Why do group 1 and 7 elements react well?

The groups in The Periodic Table of Elements categorize elements according to the number of electrons in the outer shell. Atoms wish to obtain a complete outer shell eg. 2 electrons in the first shell, 8 in the rest. Group 1 elements have 1 electron in the outer shell (valence electrons). To obtain a complete outer shell, the atoms give their electron away. Group 7 elements have 7 valence electrons and require 1 more electron to obtain a complete outer shell. They can receive the electron given from the group 1 elements. This creates a charge in the atoms. Group 1 elements have more protons than electrons and so have a positive charge. Group 7 elements have less protons than electrons and so have a negative charge. The negatively charged atoms (anions) and the positively charged atoms (cations) are attracted to each other. Hydrogen- a group 1 element, reacts really well with fluorine- a group 7 element. It forms an ionic bond when the anions and cations form a 3D fixed lattice.


How many electrons do the elements of most stable group have in their outer energy levels?

how many electrons do the elements of the most stable group have in their outer energy level?


How many electrons are found on the outer shell of the oxygen group?

Six electrons in the outer shell of 'Group 16' elements


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

halogens (group 17 elements)


Elements in a group vhave?

Elements in a group have the same number of electrons in their outer orbital.


Which group of the periodic table has elements with atoms that have six electrons in their outer level 2 6 16 or 18?

16


What do elements in the same group have?

The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements. Every element in the first column (group one) has one electron in its outer shell.


How does the number of outer energy level electrons relate to the properties of elements?

Elements whose atoms have the same number of outer electrons have similar properties..


What group on the periodic table has elements with seven electrons in their own outer level?

The group number 17 comprises of elements that has seven electrons in their own outer level.


Why do the elements in a group behave similarly?

The elements in a group have the same number of electrons in their outer orbital.


Elements that have atoms with full outer shells of electrons will form what?

inert


Elements in a group have the same number of what?

Valence electrons (electrons in the outer shell)


How many electrons are there in the highest occupied energy level of atoms in Group 5A elements?

Group 5A elements are in the fifteenth column, comprising nitrogen, phosphorous, arsenic, antimony, and bismuth. The outer shell contains valance electrons.


Elements in group 2 have similar properties because they all have the same number of?

Atoms of elements in group (column 2 of the periodic table) have 2 electrons in their outer shell. They have a low electronegativity, which means the electrons are not strongly attracted to the protons in the nucleus when compared to the electrons in atoms of column 6 or 7. For this reason, group 2 elements easily form +2 ion when in the presence of group 6 or7 elements.