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Would lithium or helium have a higher melting point?
Lithium has a higher melting point than helium. Lithium melts at around 180.5 degrees Celsius, whereas helium melts at a much lower temperature of -272.2 degrees Celsius.
Which has the greatest number of atoms- 3.5 grams of helium or 3.5 grams of lithium?
3.5 grams of lithium would have a greater number of atoms because lithium is heavier than helium. Each element has a different atomic mass, so the same weight of each element will contain a different number of atoms.
What alkali metal with fewer than 10 protons in the necleus?
Lithium.
Which is softest sodium or lithium?
Lithium is softer than sodium. Sodium is harder because it has a higher atomic number and more electrons, which results in stronger metallic bonding compared to lithium.
Why does lithium metal conduct electricity well where as sold lithium chloride does not?
Lithium chloride is a completely different substance than lithium metal. Sodium chloride is table salt however table salt isn't highly corrosive or explosive in water. Properties can change dramatically when compounds are formed.
What are other differences between lithium and helium?
Helium has an atomic mass of 4.- Number of Protons/Electrons: 2- Number of Neutrons: 2Lithium has an atomic mass of 7.- Number of Protons/Electrons: 3- Number of Neutrons: 4Helium has TWO less neutrons than Lithium.
Would lithium or helium have a higher melting point?
Lithium has a higher melting point than helium. Lithium melts at around 180.5 degrees Celsius, whereas helium melts at a much lower temperature of -272.2 degrees Celsius.
Which has the greatest number of atoms- 3.5 grams of helium or 3.5 grams of lithium?
3.5 grams of lithium would have a greater number of atoms because lithium is heavier than helium. Each element has a different atomic mass, so the same weight of each element will contain a different number of atoms.
Why does lithium have a higher first ionisation energy than helium?
Helium has a higher ionization energy than in lithium. Further, helium has the highest first ionization energy in all the elements in the periodic table. Lithium has an electronic configuration of [He]2s1. The outer electron is further out and experiences a lower effective nuclear charge. The 2s electron is further out from the nucleus than the 1s electrons in He. Lithium has an atomic radius of 152pm, whereas helium is calculated at 81pm. The effective nuclear charge on the helium electrons is higher than that acting on the 2s electron in Lithium. Estimates vary a little but roughly for helium it is .69 units. For Lithium the effective nuclear charge is 1.3 due to the "shielding" caused by the inner 1s electrons.
Is lithium a pure element?
No - the lightest elements are hydrogen and helium. Although lithium is a lightest metal and the lightest element that is a solid at room temperature.
What is the less weight metal?
The lightest metal is lithium, with a density lower than water.
What alkali metal with fewer than 10 protons in the necleus?
Lithium.
Which is softest sodium or lithium?
Lithium is softer than sodium. Sodium is harder because it has a higher atomic number and more electrons, which results in stronger metallic bonding compared to lithium.
Is lithium less dense than water?
Technicaly, its lighter than oxigen, nitrogen, and all the other gasses, (i believe) exept hydrogen and helium. so yes, i SOULD be lighter than air, but if you let go of it, it will fall. but it is the lightest metal. So in conclusion, i should be lighter than air, but.isn't. how interesting!
What is more reactive lead or lithium?
Lithium is more reactive than lead. Lithium is a highly reactive metal and can react violently with water. Lead, on the other hand, is a relatively stable metal and does not react as readily with other substances.
Why does lithium metal conduct electricity well where as sold lithium chloride does not?
Lithium chloride is a completely different substance than lithium metal. Sodium chloride is table salt however table salt isn't highly corrosive or explosive in water. Properties can change dramatically when compounds are formed.
This alkali metal has 76 fewer electrons than francium?
The alkali metal with 76 fewer electrons than francium is lithium. Francium has 87 electrons, so lithium, which has 3 electrons, has 76 fewer electrons than francium.
