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The size of an atom's valence shell is primarily influenced by its atomic number, which determines the number of protons and electrons present. As atomic number increases, the number of electron shells increases, leading to larger atomic radii. Additionally, electron-electron repulsion within the valence shell and effective nuclear charge—how strongly the nucleus attracts the electrons—also play crucial roles in determining the size of the valence shell. Overall, these factors contribute to the spatial arrangement and energy levels of the valence electrons.
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Why does sulfur have a valency of 4 and 6 when it needs only 2 electrons for stable configuration?
It has 6 electrons in it's valance shell and needs 2 more electrons in it's valance shell to become stable. Some atoms, phosphorous for instance ( valance # 5 ), can reach deeper into their valance shell and make additional covalent bonds.
Why do you think non metals tend to be good at sharing electrons?
All atoms are more stable when their outer most electron shell (valance shell also refered to as a valance orbital but it is slightly different) is full of electrons. Non metals generally have almost full valance shells and it takes less energy to gain a few electrons to reach the stable full outer shell than to lose many electrons to form a stable full outer shell. Take F as an example - it has 7 electrosn in its outermost shell and this shell can fit 8. It will accept 1 electron more easily than losing 7.
When a valance shell has 7 electrons will it gain or lose an electron?
It will gain an electron so that it can complete a full outer shell of 8 electrons.
Can an electon be completely taken away from another atom in a convalent bond?
No, the atoms in a covalent bond are shared between atoms and even when the sharing is not equal, polar covalent bonds, it is still sharing and not electron is pulled into another elements valance shell.
What are the electrons the outermost shell of an electron called?
Valence electrons are the electrons in the outermost shell of an atom. The ones in the inner shell are known as core electrons.
How many atoms in the valence shell of sodium?
There is one electron in sodium's valance shell.
The electrons found in an atoms outeer shell are often called electrons?
Valance electrons.
Why does sulfur have a valency of 4 and 6 when it needs only 2 electrons for stable configuration?
It has 6 electrons in it's valance shell and needs 2 more electrons in it's valance shell to become stable. Some atoms, phosphorous for instance ( valance # 5 ), can reach deeper into their valance shell and make additional covalent bonds.
How many atoms are in the valance shell of 17 protons?
7. there is 17 electrons, 2 in the first shell, 8 in the second and 7 in the third
An electron that is found in the outermost shell of an atom and that determines the atoms chemical properties?
This electron is a valance electron.
What does a valence shell have to do with chemical reactions?
The valance shell is important in chemical reactions, as it is the valance electrons which are gained/lost during reactions. An atoms valance electron configuration is what largely determines its chemical reactivity.
How are valence electrons related to stability?
Valence electrons are the outermost electrons in an atom, and they determine the atom's chemical properties. Atoms with a full valence shell of electrons tend to be stable because they have a lower energy state. Atoms will gain, lose, or share electrons to achieve a full valence shell, which increases their stability.
What valance shell does hydrogen belong to?
K shell.
What makes a group not reactive on the periodic table?
A full octet, valance shell. A valance shell with eight electrons, such as the Nobel gases have, doe not need to donate or accept electrons into or out of the valance shell to be stable.
Atoms react to achieve four electons in outer shell?
Well according to the octet rule the a compound must have 8 valance electrons to be stable.
Do all carbon atoms have exactly 6 atoms?
Yes, all carbon atoms have 6 protons in their nucleus, which defines them as carbon. However, carbon atoms can have different numbers of neutrons which create isotopes of carbon with varying atomic masses.
Is the valance shell innermost or outtermost?
outermost
