Actually, all of them can form positive ion, if reacted with a more reactive element than them. Like Oxygen or Chlorine.
Magnesium, calcium, sodium, lithium, uranium, plutonium can be flammable - depending on the temperature and the physical form. Titanium is flammable at high temperature.
Lithium is the lightest metal, Potassium is the second lightest -- density about 0.86 kg/L
sodium, sodium potassium, potassium lithium, lithium aluminum hydride
lithium 6.941
K; Potassium
No, selenium is not an alkali metal. It is a nonmetal element that belongs to the chalcogen group on the periodic table. Alkali metals include elements such as lithium, sodium, potassium, and cesium.
Tungsten. Mercury. Tin. Gold. Lithium. Potassium. Calcium. Sodium. Titanium. Chromium.....................................................
Magnesium, calcium, sodium, lithium, uranium, plutonium can be flammable - depending on the temperature and the physical form. Titanium is flammable at high temperature.
Lithium selenide, Li2Se
Lithium is the lightest metal, Potassium is the second lightest -- density about 0.86 kg/L
Lithium is a metal, it reacts by losing an electron to form a positive ion. It is a member of Group 1 with sodium and potassium.
Lithium, Sodium, Magnesium, Aluminum, Potassium, Calcium, Scandium, Titanium, Vanadium, Chromium, Iron, Cobalt, Nickel, Copper, Zinc etc
Sodium, lithium, potassium
Yes, potassium is more reactive than lithium, since although they both need to lose one electron to have full outer shells, potassium's outer electron is furthest from the positive attractions of the nucleus. Therefore, it is easier for potassium to lose its outer electron than it is for lithium. hope that helped
it is titanium
It is because Lithium has the smallest atomic radius of them all, because it has only two shells of electrons.So the small lithium nuclei, with their one positive charge each are more easily held together by the delocalised elextron cloud than the much larger sodium or potassium ions that still only have one positive charge each.potassium is more reactive owing to the loosely bound valence electron owing to a relatively more "electron shielding" effect.The valence electron is partially shielded from the attractive force of the nucleus by the inner electrons.Although lithium and potassium have one valence electron.The difference in hardness between lithium and potassium is primarily due to their atomic structures and bonding. Lithium has a smaller atomic radius and stronger metallic bonding compared to potassium. This makes lithium atoms more tightly packed and bonded, resulting in a harder substance compared to potassium.
There will be no reaction between the lithium and the potassium hydroxide. However, since the potassium hydroxide is in solution, the lithium will still react with the water to form lithium hydroxide and hydrogen gas. 2Li + H2O --> H2 + LiOH.