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8 - called valence electrons. it doesn't matter what energy level or orbital shape. a "happy atom" has 8 valence electrons
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∙ 14y ago
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What is an outer shell of an element?
The outer shell is the valence electrons and they are very loosely bound to the nucleus - less force by the nucleus on the valence electrons, so valence shell's electrons are exchanged first in any reaction.Valence
Why is krypton unreactive?
Krypton is a noble gas and has a particularly stable electronic configuration. That's why it may be very unreactive.
Is the element reactive or satble how do you know?
If the element has a full valence shell, such as the noble gases, then it is unreactive. It the element is missing few valence electrons of has few valence electrons, then the element is very reactive, such as the sodium.
Which chemical family is composed of elements that have full valence shells?
Valence shells mean that the outermost orbits of electrons are full. Recall that from the inside out, the number of electrons for a shell to be full are: 2, 8, 8, 8, etc... So, Helium, He (2) has a filled shell. Neon (10) has a filled inner shell (2) and a filled outer shell (8): 2 + 8 = 10. Argon (18) has a filled inner shell (2), another filled shell (8), and a valent shell (8): 2 + 8 + 8 = 18. The family is composed of the non-reative Noble Gases.
Would beryllium tend to lose two electrons or gain six when forming bonds?
Beryllium would tend to lose its two electrons when forming a bond because it is easier to lose its two valence electrons rather than gain an additional five in order to obtain a full outer shell.
How many more valence electrons does magnesium need to have a full outer valence shell?
it needs six more electrons to have a full outer valence shell.
What are atoms valence electrons?
the electrons on their outer shell, all atoms want to gain a full valence shell.
Each atom is left with a what outer shell?
Electron outer shell tee hee =^-^=
How many electrons are in the outer shell of Ar?
Argon has eight valence (outer) shell electrons. It is a Noble Gas so its valence shell is full (Octet Rule).
How many valence electrons are in xenon?
The outer shell of xenon is full with 8 electrons.
How many valence electrons are needed to achieve a full outer shell?
It depends, most atoms need 8 total valence electrons in their outer shell (some need 2). So subtract the number they have (determined by the group that the element is in) from 8 and that is how many they need to fill their outer shell!
How many more valence electrons does soduim need to have a full outer valence shell?
7
How many valence electronss are there in Boron?
There are three valance electrons. These are the electrons in the outer shell if it is not full.
What is considered a full outer ring of an atom?
A full outer ring, or valence shell, has 8 electrons, except for helium, which has 2 electrons.
What is the term use for a completed outer shell of 8 electrons?
The most common term for a completed outer shell of electrons is that is or has "full" valence electrons.
What is an outer shell of an element?
The outer shell is the valence electrons and they are very loosely bound to the nucleus - less force by the nucleus on the valence electrons, so valence shell's electrons are exchanged first in any reaction.Valence
If an atom has a stable number of electrons how can you tell?
It's outer valence shell is full.
