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Because it has a fourth shell which means it's valence electrons are further from the nucleus (protons) meaning that there is less attraction between it's electrons and protons; this obviously forms a weaker bond. Sodium has only 3 shells which means its valence electrons are closer to the nucleus.
Wiki User
∙ 12y ago
Wiki User
∙ 8y agoThe isotopes of sodium (element number 11) have fewer protons and neutrons per atom than iron (element number 26), so a volume of sodium will weigh less than an equivalent volume of iron in the same phase.
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Which is softest sodium or lithium?
sodium is a softer metal than lithium.
What do you call any metal other than iron and iron alloys?
nonferrous
What happens when two nuclei that are heavier than iron are fused?
The two nuclei's are lighter than iron then when they are fused together they will release energy. If the two nuclei's are heavier than iron they will absorb energy when fused.
What is the charge for iron?
Iron is a transition metal. Transition metals can have more than one charge. Iron can be a +2 or a +3 charge.
Is the iron in food the same as the metal iron?
iron in the body helps you to not get sick so easily and from getting easily bruised and metal iron is made fron rocks in the earth
What is heavier iron or silica?
Iron is heavier because iron is a metal and metals are heavier but silica is not a metal so silica is lighter than iron.
What is the difference between helium and iron?
Helium is a gas that is lighter than air. Iron is a solid metal and is heavy.
Is neon heavier than iron?
No. Neon is lighter than iron
Is lithium is lighter than iron?
yes lithium is lighter than iron by just a mere look at their atomic masses.
What is one advantage of using magnesium metal in airplanes and bicycles rather than iron or aluminum?
Magnesium is lighter. As long as it's also strong enough it can lead to a lighter end product.
Is iron heavier or lighter than aluninum?
Iron is more dense.
What element is most reactive sodium magnesium or iron?
Sodium is more reactive than either magnesium or iron.
Which is softest sodium or lithium?
sodium is a softer metal than lithium.
Which one is more malleabe iron or sodium?
Sodium is more malleable than iron. But sodium may catch fire may exposed to air / moisture.
What do you call any metal other than iron or iron alloys?
a non-ferrous metal
Is ductile iron lighter than grey iron?
They are virtually identical with very similar densities.
Why iron floats on water?
Iron doesn't float. To float it has to be lighter than water. It is heavier.
