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Magnesium is smaller than calcium because it has less shells of electron although both elements have the same number of valence electrons calcium has one more shell. However sodiums electron configuration is 2.8.1 which gives it three shells of electron- the same as magnesium it also has less protons in it's nucleus so it appears that sodium is smaller than magnesium not the other way around. Hope this helps :)
June Douglas
Wiki User
∙ 14y agoIt's smaller than calcium because it has one less electron shell. It's smaller than sodium despite having the same number of shells because it has a higher first ionization energy and therefore holds its electrons more tightly.
Wiki User
∙ 12y agoYes, aluminum atoms are smaller than magnesium atoms. Aluminium has a metallic radius of 0.143 nm and magnesium is 0.160 nm.
This is counter-intuitive: it's natural to picture the atoms getting larger as you go across the Periodic Table, adding protons, neutrons and electrons as you go. But think about where the electrons are being added to: they are going into the same shell, at the same distance from the nucleus - in this case shell number 3 (don't think about s and p, it's not helpful here!) So in Mg we have 12 protons in the nucleus pulling in all the electrons, and in Al we have 13 protons pulling in all the electrons. Al's nucleus is bigger, so will have more impact on the outer electrons and pull them in ever so slightly more than for Mg. Remember that both Mg and Al have the same number of inner electrons shielding the outer ones from the effect of the nuclear charge.
This trend is the same right across the periodic table; radius decreases across a period. Of course it increases down a group as you are adding another shell.
Wiki User
∙ 13y agoMagnesium is smaller than calcium because it has less shells of electron although both elements have the same number of valence electrons calcium has one more shell. However sodiums electron configuration is 2.8.1 which gives it three shells of electron- the same as magnesium it also has less protons in it's nucleus so it appears that sodium is smaller than magnesium not the other way around. Hope this helps :)
Wiki User
∙ 16y agoYes. Atomic size goes up as you go down any column in the periodic table
Wiki User
∙ 12y agoI believe mg is smaller, because it has more protons to contain it's electrons... but check out this site: webelements.com
Wiki User
∙ 13y agono it is not
Wiki User
∙ 11y agoBarium has a larger radius than magnesium
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Which is the smallest atom magnesium calcium barium or strontium?
Magnesium with two electronic shells.
Is a sulfur atom bigger than an phosphorous atom?
The neutral atom is bigger. The ion would be smaller because in order for magnesium to become a positively charged ion, it has to give up its valence electrons, which results in the removal of the outermost energy level. So instead of having three energy levels, the ion now has only two.
Why is it easier to remove an electron from a sodium atom than from a magnesium atom?
Phosphorus has a higher energy level so it pulls harder on its electrons.
When an atom of chlorine forms an ionic bond with an atom of sodium does the atom of chlorine become an ion with a smaller or larger radius than the atom of chlorine?
It becomes an ion with a larger radius than the atom of chlorine
Is calcium higher than sodium in the electrochemical series?
Yes it is. Calcium atom loses electrons more readily in cell reactions than in reactions with air, water and dilute acids.
Compared to the atomic radius of a sodium atom the atomic radius of a magnesium atom os smaller the smaller radius is primly a result of the magnesium atom having?
a larger nuclear charge
What is the most common types of atom in your bodies?
Phosphorus, hydrogen, calcium, carbon, oxygen, nitrogen, magnesium, sulfur, potassium, and sodium
Which is more reactive Mg or Ca Why?
Calcium is more reactive. In the periodic table, Calcium is directly below Magnesium, which means that a calcium atom is larger than a magnesium atom. This means that the electrostatic attraction between the valence electrons of calcium and the nucleus is weaker than in magnesium(larger distance, smaller force). So, the valence electrons of calcium can easily be lost to form Ca2+ , which translates to Calcium being the more reactive metal.
What is the most abundant atom in the human body?
The most important cations in the human body are sodium, potassium, magnesium, and calcium ions
Which is the smallest atom magnesium calcium barium or strontium?
Magnesium with two electronic shells.
How is an atom of the element sodium structurally different from an atom of magnesium?
A sodium atom has 11 protons and 11 electrons including 1 outer shell electron A magnesium atom has 12 protons and 12 electons of which 2 are in the outer shell. Sodium loses its valence electron more easily than magnesium does, making the sodium much more reactive.
Which is the smallest atom out of calcium beryllium magnesium and strontium?
Beryllium (Be) apexvs
Why is calcium more reactive than magnesium?
Calcium is more reactive than magnesium because it is larger than a magnesium atom because it has one more energy level. Valence electrons are on the outermost occupied energy level in the atom and they cause the atom to react, and thus the further the Valence electrons are from the nucleus, the more reactive they are. Therefore, calcium is more reactive than magnesium because the valence electrons on the calcium atom is farther from the nucleus.
In the the mixture sodium chloride is sodium the smaller atom?
Sodium chloride is a chemical compound, not a mixture.
Which diagram best represents the relationship between the diameter of a sodium atom and the diameter of a positive sodium ion?
A sodium ion is smaller in diameter than a sodium atom.
What is bigger a sodium atom or a carbon atom?
A carbon Atom. Sodium Atoms Weigh Less Than Carbon Atoms And Also They Are Smaller Overall.
Oxygen fluorine sodium magnesium aluminium and neon which one is a single atom?
neon
