Why Does Sodium Have A Larger Atomic Radius Than Magnesium?

Why does magnesium have a smaller atomic radius than sodium?

Magnesium atom is smaller than sodium atom because the nuclear charge of Magnesium ( 12+ ) is higher than that of Sodium ( 11+ ).

Magnesium nucleus will attract the electrons more toward it and therefore, shrinking the size of the atom..

Why does sodium have the largest atomic radius?

This means that its valence electron is in the second energy level. Sodium is in period 3 in group 1/IA, so its valence electron is in the third energy level, therefore it has a greater atomic radius than lithium. The size of an atom is usually known as its atomic radius.

Which is larger sodium or chlorine?

Sodium and chlorine belongs to the same period (row in periodic table). The trend in a group (column in periodic table), the higher the atomic number, then the size of atoms get bigger too. This is due to the increase number of electron shell. … Therefore, the atomic size for chlorine is smaller than sodium.

Which has a larger atomic radius sodium or sulfur?

sodium (Na) has the largest radius. sulfur (S) has the smallest radius.

Which ion is smaller Na+ or mg2+?

Explain your answer. mg2+ would be the smaller ion this is because each ion has the same number of electrons however mg2+ has a greater number of protons and therefore is more charge dense and the outer electrons feel a greater pull from the nucleus.

Which has the bigger size out of sodium and magnesium?

So the electron proton attraction is quite high than in sodium. As a result the electrons get attracted more towards the nucleus than in a sodium atom which makes its outer shell get close to the mucleus. So thats why the atomic radius decreases along the period which makes sodium atom bigger than magnesium atom.

Which is larger fe2+ or fe3+?

Fe2+ is greater in size than Fe3+. … This is because the outermost electron in the Fe2+ ion is pulled off to form Fe3+ ion. As the electrons are removed, it reduces the repulsion increasing nuclear charge experienced by each of the other d electrons and decreases the size of the ion.

What is the atomic radius of magnesium?

173 pmMagnesium/Van der Waals radius

Is calcium bigger than magnesium?

Answer and Explanation: Calcium is more reactive than magnesium because the calcium atom is larger than the magnesium atom. Because of its larger size, calcium has one more…

Is Na+ bigger than mg2+?

Answer. Deduce which of Na+ and Mg2+ is thesmaller ion. … mg2+ would be the smaller ion this isbecause each ion has the same number of electrons however mg2+ has a greater number of protons and therefore is more charge dense and the outer electrons feel a greater pull from the nucleus.

Does strontium or magnesium have a larger atomic radius?

Atomic Radius of the elementsHelium31 pmCadmiumBismuth143 pmStrontiumMagnesium145 pmThuliumCopper145 pmYtterbiumTin145 pmTerbium35 more rows

Which atom is bigger sodium or magnesium Why?

It is due to increased nuclear charge because of which force of attraction between the nucleus and valence electrons increases therefore atomic size decreases, so Na is bigger in size than Mg.

Which has the largest atomic radius magnesium?

Atomic Radius of the elementsHelium31 pm161 pmBismuth143 pm219 pmMagnesium145 pm222 pmCopper145 pm222 pmTin145 pm225 pm35 more rows

What is the radius of mg2+?

Metallic, Covalent and Ionic Radii(r)*Atom/Ionr(pm)Lu3+86Mg160Mg2+72Mn13721 more rows

Which has the largest atomic radius?

franciumAtomic radii vary in a predictable way across the periodic table. As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is the largest.