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the effective nuclear charge on barium is 2.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoZeff = (# of protons) - (# of core electrons)
Zeff of Al = 13 - 10 = +3
The effective nuclear charge experienced by Aluminum's valence electrons is +3
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Which one would have smaller atomic size sodium or magnesium?
Both Mg and Na have the same outer energy level (shell). Mg has one proton more than NA and one electron more. The charge on th eouter shell the effective nuclear charge is reduced by the inner core electrons, which are the ame in both cases So the pull experienced by the valence electrons towards the nucleus is more in the case of Mg than Na. Hence Mg has slightly smaller size (radius) than Na.
What happens to an atom of magnesium (Mg) when it forms an ionic bond in which it has the same electron configuration as the noble gas neon?
For Mg to acquire the same electron configuration as Neon, it must lose 2 of its valence electrons. It thus obtains a 2+ charge. The 2 electrons that it loses can go to an accepting atom, such as O, S, Cl, etc. to form an ionic bond, where the accepting atom has a negative charge.
Why do atomic radius decrease from the left to the right on the periodic table?
Effective nuclear charge (Z) increases going across a row in the periodic table. So when increasing amounts of protons and electrons to an atom(within the same level or row) the protons are more able to hold onto electrons tightly , reducing size.
How many protons does mg has?
This is about magnesium element. Mg atom contains 12 protons.
How many electrons does a neutral Mg atom contain?
12
Which atom is most likely to form a cation with a charge of plus 2?
Magnesium (Mg)
A Mg atom differs from a Mg2 plus ion in that the Mg atom has?
The Mg atom has more electron than the Mg+2 ion.
How does the size of a magnesium ion with a 2 charge compare with that of a sodium ion with a single plus charge?
The Na+ will have a larger size (atomic radius) while Mg2+ will have relatively smaller size. Both elements have lost their valence (outermost) electrons and achieve a stable octet state as ions. what makes a difference is the effective nuclear charge. because Mg has a higher nuclear charge, the valence electrons are pulled more towards the nucleus thereby reducing the atomic radius.
How does the size of a magnesium ion with a 2 plus charge compare with that of a sodium ion with a single plus charge?
The Na+ will have a larger size (atomic radius) while Mg2+ will have relatively smaller size. Both elements have lost their valence (outermost) electrons and achieve a stable octet state as ions. what makes a difference is the effective nuclear charge. because Mg has a higher nuclear charge, the valence electrons are pulled more towards the nucleus thereby reducing the atomic radius.
Which one would have smaller atomic size sodium or magnesium?
Both Mg and Na have the same outer energy level (shell). Mg has one proton more than NA and one electron more. The charge on th eouter shell the effective nuclear charge is reduced by the inner core electrons, which are the ame in both cases So the pull experienced by the valence electrons towards the nucleus is more in the case of Mg than Na. Hence Mg has slightly smaller size (radius) than Na.
Is Mg an atom?
Yes, Mg is Magnesium, it is number 12 on the Periodic Table
What happens to an atom of magnesium (Mg) when it forms an ionic bond in which it has the same electron configuration as the noble gas neon?
For Mg to acquire the same electron configuration as Neon, it must lose 2 of its valence electrons. It thus obtains a 2+ charge. The 2 electrons that it loses can go to an accepting atom, such as O, S, Cl, etc. to form an ionic bond, where the accepting atom has a negative charge.
What is the chemical formula for magnesium nitrate?
Mg(NO3)2 1 magnesium atom, 2 nitrogen atoms, and 6 oxygen atoms Mg(NO3)2 because the charge on Mg is +2 and the charge of NO3 is -1 so you would need to balance. Magnesium has 2+ and Nitrate is one of the common polyatomic ions: NO3^1- Combine them both: Mg1(NO3)2 ===> Mg(NO3)2
What does Be and Mg have in common?
They have two nuclear ☢️
What is magnesium's abbreviation in the periodic table?
Mg.....and with the charge- Mg(2+)
Why do atomic radius decrease from the left to the right on the periodic table?
Effective nuclear charge (Z) increases going across a row in the periodic table. So when increasing amounts of protons and electrons to an atom(within the same level or row) the protons are more able to hold onto electrons tightly , reducing size.
An atom that loses electrons has a negative charge?
1) depends up on the the element basically: metals (electropositive elements) can donate nonmetals can(electro negative )elements can accpect the electrons 2)the result: if an atom losses the electron it becomes positively charged normally metals donate the electons and become + charged.
