Cesium, rubidium, and francium could all melt on a hot day. (Cesium and francium in the 80s Fahrenheit and above, and rubidium just over 100oF).
Rubidium. As it's melting point is 39 C. Other alkali metals further down the period are too unstable and dangerous to be handled without expert help, but have lower melting points.
aluminum
most likely in pottery kilns.
1 and 1
alkali metals
Anything from the alkali metal. For example, Cs because since its a alkali metal and on the left side of the periodic table it only has to love 1 electron to gain more.
Lithium is NOT the most active alkali metal. Francium is the most active but is available in such trace quantities and radioactive that for practical purposes it is Cesium that is considered most active.
Rubidium.
most likely in pottery kilns.
because it has the most number of electrons in the alkali metal group
1 and 1
No...
Francium.
alkali metals
Anything from the alkali metal. For example, Cs because since its a alkali metal and on the left side of the periodic table it only has to love 1 electron to gain more.
Lithium is NOT the most active alkali metal. Francium is the most active but is available in such trace quantities and radioactive that for practical purposes it is Cesium that is considered most active.
Radium is a member of the group 2 (alkaline earth metals) of the periodic table of Mendeleev; the other members are beryllium, calcium, magnesium, strontium, barium. Radium is also a radioactive element.
Metals cannot 'burn'. Most likely, your 'burning' metal is enriched with other elements that burn. It can melt, it then just melts into liquid metal, then it is still metal.
The most explosive alkali earth metal on the planet is Francium. No actually Francium is still below Cesium. And Cesium is the second explosive on the planet. No one actually knows what the most explosive alkali metal is because they are not legally allowed to test it.