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What is the number that tells you how many electrons an atom needs to gain or lose to complete a shell is called?
Wiki User
∙ 11y ago
It is Valence, I am sure because I just had a test about this.
Wiki User
∙ 15y ago
Wiki User
∙ 11y agoChemists use the term valance to describe the number of electrons that a given element would need to gain or lose, to complete its outer electron shell.
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How many electrons would make the d shell complete?
The d shell needs 10 electrons to be complete.
What is Magnesium's charge when it has a complete set of valence electrons?
The overall charge of any atom is 0. This is because the overall charge is number of protons - number of electrons. For every atom the number of electrons is equal to the number of protons so it is 0.
How is the number of valence electrons of a nonmetal related to the charge on the ion the nonmetal?
Nonmetals will undergo chemical reactions that result in a stable electron configuration of 8 electrons in the outer shell. The number of valence electrons tells you have many they have in their outer shell prior to any chemical reaction, and therefore, how many more electrons they need to get a complete set of 8. So for example, oxygen has 6 valence electrons and therefore needs 2 more to have 8, so it will form an ion with a charge of minus two, which is the charge that is carried by the additional two electrons that oxygen will acquire. Chlorine has 7 valence electrons, therefore it needs just one more electron to complete its outer shell, and as an ion will have a charge of minus one. Nitrogen has 5 valence electrons, so it needs 3 more, and will form an ion with a charge of minus three.
How many valence electrons does bromine has to lose or gain to have 8 valence electrons?
Neutral Bromine has three complete rings of electrons. The first ring consists of 2 electrons, the second has 8, the third 18, and the fourth has a maximum capacity of 8 electrons. Bromine only has 7 electrons in it's outer ring, though, so it needs one extra electron to complete it's ring. So to answer your question, it needs ONE more valence electron.
How do you form ionic bonds between lithium and nitrogen?
Li3N because Lithium will give 3 electrons to complete Nitrogen's octet as N has 5 electrons in it's valence shell and needs 3 more to complete it's octet.
How many electrons would make the d shell complete?
The d shell needs 10 electrons to be complete.
How many more electrons does nitrogen need to have a complete valence shell?
since the atomic number is 7, and the first full layer takes 8 electrons, it needs 1 electron
What is the significance of valence number?
Valance numbers represent the least number of electrons that particular atom needs to be fulfilled, or have a complete outer shell, and is useful when determining bonding properties.
What is Magnesium's charge when it has a complete set of valence electrons?
The overall charge of any atom is 0. This is because the overall charge is number of protons - number of electrons. For every atom the number of electrons is equal to the number of protons so it is 0.
What do you need to build a neutral atom?
The atom needs to have the same number of electrons as it has protons.
How many additional valence electrons does chlorine needs to have a full valence shell?
11 electrons makes the third energy level complete. One
How is the number of valence electrons of a nonmetal related to the charge on the ion the nonmetal?
Nonmetals will undergo chemical reactions that result in a stable electron configuration of 8 electrons in the outer shell. The number of valence electrons tells you have many they have in their outer shell prior to any chemical reaction, and therefore, how many more electrons they need to get a complete set of 8. So for example, oxygen has 6 valence electrons and therefore needs 2 more to have 8, so it will form an ion with a charge of minus two, which is the charge that is carried by the additional two electrons that oxygen will acquire. Chlorine has 7 valence electrons, therefore it needs just one more electron to complete its outer shell, and as an ion will have a charge of minus one. Nitrogen has 5 valence electrons, so it needs 3 more, and will form an ion with a charge of minus three.
What is the number of electrons to fill fluorine?
it has 7 valence electrons, which is the number of electrons on the outer energy level, so it needs 7.
How many valence electrons does bromine has to lose or gain to have 8 valence electrons?
Neutral Bromine has three complete rings of electrons. The first ring consists of 2 electrons, the second has 8, the third 18, and the fourth has a maximum capacity of 8 electrons. Bromine only has 7 electrons in it's outer ring, though, so it needs one extra electron to complete it's ring. So to answer your question, it needs ONE more valence electron.
If an atom Y contains 6 electrons in the outer shell what will be its valency?
It needs two more electrons to complete octet and hence its valency will be two if it is non metallic.
How do you form ionic bonds between lithium and nitrogen?
Li3N because Lithium will give 3 electrons to complete Nitrogen's octet as N has 5 electrons in it's valence shell and needs 3 more to complete it's octet.
Does helium have a complete outer shell?
Not by itself, no (that is, hydrogen is not a noble gas). A neutral hydrogen atom starts out with 1 electron, but it needs 2 electrons to fill its shell. Therefore, a hydrogen atom will often form 1 covalent bond with another atom, in order to gain that 1 extra electron it needs to fill its shell. Important note: Most elements need 8 electrons to get a full shell, but hydrogen is the exception: it only needs 2 electrons to get a full shell.
