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In their outer electron shell, halogens have 7 valence electrons, one less than the number needed for a full shell. Therefore, it is much, much easier for the halogen to gain an electron in bonding than for it to lose 7 - the ionization energy (energy required to remove an electron from an atom) is quite high.
Yazmin Sawayn
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Why it is difficult to remove an electron from halogens?
In their outer electron shell, halogens have 7 valence electrons, one less than the number needed for a full shell. Therefore, it is much, much easier for the halogen to gain an electron in bonding than for it to lose 7 - the ionization energy (energy required to remove an electron from an atom) is quite high.
What is characteristic about the outer electron shells of the halogens?
The outer electron shells of the halogens contain seven electrons, and need one more electron to have eight and become stable.
What group achieves the electron configuration of a noble gas by gaining one electron?
All halogens have 7 valence electrons. They gain one electron and achieve noble gas electronic configuration
What group of elements give off the most energy when they gain an electrons?
Group 8A, the noble gases because they have high electron affinity.
Do halogens gain or lose electron when forming compounds?
gain
Why it is difficult to remove an electron from halogens?
In their outer electron shell, halogens have 7 valence electrons, one less than the number needed for a full shell. Therefore, it is much, much easier for the halogen to gain an electron in bonding than for it to lose 7 - the ionization energy (energy required to remove an electron from an atom) is quite high.
What is characteristic about the outer electron shells of the halogens?
The outer electron shells of the halogens contain seven electrons, and need one more electron to have eight and become stable.
How are halogens like metals?
Halogens are not like metals. Halogens are elements missing one electron for full valency.
What does the ionization energy tell you about an element?
How difficult it is to remove an electron.
What group achieves the electron configuration of a noble gas by gaining one electron?
All halogens have 7 valence electrons. They gain one electron and achieve noble gas electronic configuration
What does not have identical outer electron configuration?
halogens
What group NORMALLY bonds with halogens?
Group 1 Alkali metals because the halogens need one electron to fill their outer electron shell.
What group of elements give off the most energy when they gain an electrons?
Group 8A, the noble gases because they have high electron affinity.
Which elements have electron configurations that end in ns2np5?
halogens
Which elements have electron configuration that end in ns2 np5?
halogens
Do halogens gain or lose an electron when forming compounds?
gain
Do halogens gain or lose electron when forming compounds?
gain
